Weather History

This site began collecting data on 10/12/24

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Daily History

Temperature

HourHigh TempLow TempAvgLow Wind ChillAvg Wind Chill
12:00 AM32.6°31.8°32.2°23.0°24.1°
01:00 AM31.8°30.6°31.2°22.5°23.1°
02:00 AM30.7°29.7°30.1°20.5°21.3°
03:00 AM29.6°28.5°28.9°19.4°20.2°
04:00 AM28.5°27.2°27.8°17.8°19.1°
SUMMARYHigh TempLow TempAvgLow Wind ChillAvg Wind Chill
Max32.6°31.8°32.2°23.0°24.1°
Min28.5°27.2°27.8°17.8°19.1°
Avg30.6°29.6°30.0°20.6°21.6°

Humidity

HourHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
12:00 AM56%55%55%18.3°17.6°17.9°
01:00 AM59%56%57%18.1°17.5°17.8°
02:00 AM59%58%59%18.0°16.7°17.3°
03:00 AM60%58%59%16.9°16.0°16.5°
04:00 AM61%59%60%16.4°15.3°15.7°
SUMMARYHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Max61%59%60%18.3°17.6°17.9°
Min56%55%55%16.4°15.3°15.7°
Avg59%57%58%17.5°16.6°17.0°

Wind

HourHigh SustainedLow SustainedAvg SustainedHigh GustLow GustAvg GustAvg DirectionWind Run
12:00 AM4.0 mph3.0 mph3.2 mph11.0 mph9.0 mph9.8 mph317° NW3.2 mi
01:00 AM4.0 mph3.0 mph3.4 mph11.0 mph7.0 mph9.4 mph320° NW3.4 mi
02:00 AM4.0 mph2.0 mph3.3 mph11.0 mph8.0 mph10.0 mph321° NW3.3 mi
03:00 AM4.0 mph3.0 mph3.5 mph10.0 mph9.0 mph9.5 mph322° NW3.5 mi
04:00 AM4.0 mph3.0 mph3.3 mph10.0 mph8.0 mph9.1 mph321° NW3.3 mi
SUMMARYHigh SustainedLow SustainedAvg SustainedHigh GustLow GustAvg GustAvg DirectionWind Run
Max4.0 mph3.0 mph3.5 mph11.0 mph9.0 mph10.0 mph3.5 mi
Min4.0 mph2.0 mph3.2 mph10.0 mph7.0 mph9.1 mph3.2 mi
Avg4.0 mph2.8 mph3.3 mph10.6 mph8.2 mph9.6 mph320° NW3.3 mi
Total16.6 mi

Rain

SUMMARYLiquidSnow
Total0.00"0.0"

Pressure

HourHigh PressureLow PressureAvg Pressure
12:00 AM29.76"29.75"29.76"
01:00 AM29.78"29.76"29.77"
02:00 AM29.79"29.77"29.78"
03:00 AM29.81"29.78"29.80"
04:00 AM29.83"29.81"29.82"
SUMMARYHigh PressureLow PressureAvg Pressure
Max29.83"29.81"29.82"
Min29.76"29.75"29.76"
Avg29.79"29.78"29.78"

Solar

HourHigh UVLow UVAvg UVHigh RadiationLow RadiationAvg RadiationTotal Radiation
12:00 AM0.00.00.00 W/m20 W/m20 W/m20.00 MJ/m2
01:00 AM0.00.00.00 W/m20 W/m20 W/m20.00 MJ/m2
02:00 AM0.00.00.00 W/m20 W/m20 W/m20.00 MJ/m2
03:00 AM0.00.00.00 W/m20 W/m20 W/m20.00 MJ/m2
04:00 AM0.00.00.00 W/m20 W/m20 W/m20.00 MJ/m2
SUMMARYHigh UVLow UVAvg UVHigh RadiationLow RadiationAvg RadiationTotal Radiation
Max0.00.00.00 W/m20 W/m20 W/m20.00 MJ/m2
Daytime Avg0.00 W/m20.00 MJ/m2
Total0.00 MJ/m2

Air

HourHigh AQILow AQIAvg AQIHigh ADJ AQILow ADJ AQIAvg ADJ AQIHigh ADJ PM2.5Low ADJ PM2.5Avg ADJ PM2.5
12:00 AMN/AN/AN/AN/AN/AN/AN/AN/AN/A
01:00 AMN/AN/AN/AN/AN/AN/AN/AN/AN/A
02:00 AMN/AN/AN/AN/AN/AN/AN/AN/AN/A
03:00 AMN/AN/AN/AN/AN/AN/AN/AN/AN/A
04:00 AMN/AN/AN/AN/AN/AN/AN/AN/AN/A
SUMMARYHigh AQILow AQIAvg AQIHigh ADJ AQILow ADJ AQIAvg ADJ AQIHigh ADJ PM2.5Low ADJ PM2.5Avg ADJ PM2.5
Max
Min
Avg
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Monthly History

Temperature

DayHigh TempLow TempAvg (NWS)AvgHDDCDDLow Wind ChillAvg Wind Chill
Mar 0136.8°24.2°30.5°30.7°34.30.013.9°25.0°
Mar 0253.6°24.1°39.0°39.1°25.90.015.0°33.9°
Mar 0357.7°38.5°48.0°49.7°15.30.034.1°48.1°
Mar 0456.6°26.8°42.0°44.6°20.40.010.4°39.0°
Mar 0533.7°20.5°27.0°26.4°38.60.01.2°14.4°
Mar 0643.1°20.1°31.5°33.0°32.00.020.1°29.6°
Mar 0740.1°28.4°34.0°35.9°29.10.023.3°29.0°
Mar 0855.7°20.5°38.0°35.8°29.20.016.6°34.4°
Mar 0966.9°24.8°46.0°44.4°20.60.024.8°44.3°
Mar 1081.1°33.7°57.5°55.8°9.20.033.7°55.7°
Mar 1156.9°33.7°45.5°45.4°19.60.023.6°42.7°
Mar 1270.3°29.7°50.0°48.5°16.50.029.7°48.4°
Mar 1377.3°35.3°56.0°58.2°6.80.035.3°58.1°
Mar 1473.8°48.5°61.5°60.4°4.60.045.1°60.3°
Mar 1549.2°32.6°41.0°37.3°27.70.021.8°28.5°
Mar 1632.6°27.2°30.0°30.0°35.00.017.8°21.6°
SUMMARYHigh TempLow TempAvg (NWS)AvgHDDCDDLow Wind ChillAvg Wind Chill
Max81.1°48.5°61.5°60.4°38.60.045.1°60.3°
Min32.6°20.1°27.0°26.4°4.60.01.2°14.4°
Avg55.3°29.3°43.0°42.9°22.80.022.9°39.2°
Total364.80.0
ThresholdsHigh TempLow Temp 
>= 900 days 
>= 801 day0 days 
<= 320 days10 days 
<= 00 days0 days 

Humidity

DayHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Mar 0172%21%44%22.1°-3.5°9.5°
Mar 0250%27%37%25.1°4.3°14.8°
Mar 0396%47%61%50.3°24.9°36.4°
Mar 04100%90%99%55.0°26.8°44.2°
Mar 05100%56%83%26.7°18.9°21.6°
Mar 0694%49%71%31.4°17.8°24.0°
Mar 0798%72%87%37.0°24.5°32.4°
Mar 0896%26%66%27.9°18.7°23.4°
Mar 0992%21%57%32.3°21.9°26.6°
Mar 1084%6%41%32.2°7.5°24.6°
Mar 1183%35%56%32.9°26.5°29.7°
Mar 1292%25%60%39.9°26.9°33.0°
Mar 1394%21%49%43.6°31.0°36.3°
Mar 1488%26%52%51.1°34.0°41.2°
Mar 1590%45%68%43.9°17.4°27.1°
Mar 1671%65%68%22.1°18.9°20.8°
SUMMARYHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Max100%90%99%55.0°34.0°44.2°
Min50%6%37%22.1°-3.5°9.5°
Avg88%40%62%35.8°19.8°28.2°

Wind

DayHigh SustainedLow SustainedAvg SustainedHigh GustLow GustAvg GustAvg DirectionWind Run
Mar 016.0 mph0.0 mph2.3 mph14.0 mph0.0 mph6.8 mph5° N56.4 mi
Mar 029.0 mph0.0 mph4.8 mph21.0 mph0.0 mph11.5 mph139° SE114.2 mi
Mar 0310.0 mph0.0 mph4.0 mph25.0 mph0.0 mph10.5 mph140° SE97.0 mi
Mar 0415.0 mph0.0 mph5.9 mph32.0 mph0.0 mph13.5 mph18° NNE141.2 mi
Mar 0514.0 mph0.0 mph7.4 mph35.0 mph0.0 mph18.0 mph311° NW177.3 mi
Mar 066.0 mph0.0 mph1.7 mph13.0 mph0.0 mph5.2 mph137° SE40.4 mi
Mar 076.0 mph0.0 mph3.4 mph17.0 mph1.0 mph9.9 mph356° N80.8 mi
Mar 084.0 mph0.0 mph1.0 mph11.0 mph0.0 mph3.7 mph262° W23.3 mi
Mar 094.0 mph0.0 mph1.0 mph15.0 mph0.0 mph3.5 mph213° SSW24.0 mi
Mar 107.0 mph0.0 mph1.6 mph21.0 mph0.0 mph5.6 mph139° SE37.9 mi
Mar 116.0 mph0.0 mph2.3 mph16.0 mph0.0 mph6.6 mph358° N55.2 mi
Mar 125.0 mph0.0 mph0.8 mph12.0 mph0.0 mph2.6 mph118° ESE19.4 mi
Mar 139.0 mph0.0 mph2.6 mph18.0 mph0.0 mph6.7 mph139° SE62.5 mi
Mar 1415.0 mph0.0 mph5.1 mph35.0 mph0.0 mph12.7 mph147° SSE122.0 mi
Mar 1511.0 mph0.0 mph5.9 mph23.0 mph0.0 mph15.3 mph317° NW140.7 mi
Mar 164.0 mph2.0 mph3.3 mph11.0 mph7.0 mph9.6 mph320° NW16.6 mi
SUMMARYHigh SustainedLow SustainedAvg SustainedHigh GustLow GustAvg GustAvg DirectionWind Run
Max15.0 mph2.0 mph7.4 mph35.0 mph7.0 mph18.0 mph177.3 mi
Min4.0 mph0.0 mph0.8 mph11.0 mph0.0 mph2.6 mph16.6 mi
Avg8.2 mph0.1 mph3.3 mph19.9 mph0.5 mph8.9 mph110° ESE75.6 mi
Total1208.9 mi

Rain

DayLiquidSnow
Mar 010.00"0.0"
Mar 020.00"0.0"
Mar 030.00"0.0"
Mar 041.07"0.0"
Mar 050.00"0.0"
Mar 060.04"0.0"
Mar 070.04"0.0"
Mar 080.00"0.0"
Mar 090.00"0.0"
Mar 100.00"0.0"
Mar 110.00"0.0"
Mar 120.00"0.0"
Mar 130.00"0.0"
Mar 140.09"0.0"
Mar 150.04"0.0"
Mar 160.00"0.0"
SUMMARYLiquidSnow
Max1.07"0.0"
Min0.00"0.0"
Avg0.08"0.0"
Total1.28"0.0"
ThresholdsLiquidSnow
>= 0.01"5 days
>= 0.10"1 day0 days
>= 1"1 day0 days
>= 4"0 days0 days
>= 8"0 days

Pressure

DayHigh PressureLow PressureAvg Pressure
Mar 0130.29"30.05"30.20"
Mar 0230.20"29.86"30.05"
Mar 0329.87"29.47"29.70"
Mar 0429.52"29.30"29.39"
Mar 0529.98"29.51"29.81"
Mar 0629.99"29.75"29.90"
Mar 0730.12"29.58"29.82"
Mar 0830.17"30.05"30.10"
Mar 0930.08"29.92"30.00"
Mar 1029.93"29.56"29.72"
Mar 1129.87"29.60"29.76"
Mar 1229.77"29.69"29.73"
Mar 1329.77"29.44"29.65"
Mar 1429.44"28.92"29.13"
Mar 1529.75"28.98"29.43"
Mar 1629.83"29.75"29.78"
SUMMARYHigh PressureLow PressureAvg Pressure
Max30.29"30.05"30.20"
Min29.44"28.92"29.13"
Avg29.91"29.59"29.76"

Solar

DayHigh UVDaytime Avg UVHigh RadiationDaytime Avg RadiationTotal Radiation
Mar 013.41.2696 W/m2253 W/m210.32 MJ/m2
Mar 023.61.5657 W/m2335 W/m213.74 MJ/m2
Mar 033.41.1707 W/m2223 W/m29.19 MJ/m2
Mar 040.80.1172 W/m254 W/m22.23 MJ/m2
Mar 054.41.7896 W/m2360 W/m214.92 MJ/m2
Mar 063.61.2612 W/m2195 W/m28.12 MJ/m2
Mar 071.50.5271 W/m288 W/m23.67 MJ/m2
Mar 083.81.7728 W/m2395 W/m216.55 MJ/m2
Mar 094.82.0772 W/m2370 W/m215.60 MJ/m2
Mar 104.52.0733 W/m2395 W/m216.68 MJ/m2
Mar 114.01.7758 W/m2364 W/m215.45 MJ/m2
Mar 124.31.8759 W/m2350 W/m214.93 MJ/m2
Mar 135.02.2731 W/m2391 W/m216.73 MJ/m2
Mar 144.81.1870 W/m2219 W/m29.40 MJ/m2
Mar 154.61.3914 W/m2268 W/m211.55 MJ/m2
Mar 160.00.00 W/m20 W/m20.00 MJ/m2
SUMMARYHigh UVDaytime Avg UVHigh RadiationDaytime Avg RadiationTotal Radiation
Max5.02.2914 W/m2395 W/m216.73 MJ/m2
Min0.00.00 W/m20 W/m20.00 MJ/m2
Avg3.51.4642 W/m2284 W/m211.19 MJ/m2
Total179.08 MJ/m2

Air

DayHigh AQILow AQIAvg AQIHigh ADJ AQILow ADJ AQIAvg ADJ AQIHigh ADJ PM2.5Low ADJ PM2.5Avg ADJ PM2.5
Mar 01N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 02N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 03N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 04N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 05N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 06N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 07N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 08N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 09N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 10N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 11N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 12N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 13N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 14N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 15N/AN/AN/AN/AN/AN/AN/AN/AN/A
Mar 16N/AN/AN/AN/AN/AN/AN/AN/AN/A
SUMMARYHigh AQILow AQIAvg AQIHigh ADJ AQILow ADJ AQIAvg ADJ AQIHigh ADJ PM2.5Low ADJ PM2.5Avg ADJ PM2.5
Max
Min
Avg
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Yearly History

Temperature

MonthHigh TempLow TempAvg (NWS)AvgHDDCDDHigh Heat IndexAvg Heat IndexLow Wind ChillAvg Wind Chill
Jan59.0°-10.1°23.3°23.4°1289.20.059.0°23.4°-29.2°16.1°
Feb65.6°-11.5°23.6°23.9°1150.90.065.6°23.9°-27.3°16.6°
Mar81.1°20.1°43.0°42.9°364.80.079.9°42.8°1.2°39.2°
SUMMARYHigh TempLow TempAvg (NWS)AvgHDDCDDHigh Heat IndexAvg Heat IndexLow Wind ChillAvg Wind Chill
Max81.1°20.1°43.0°42.9°1289.20.079.9°42.8°1.2°39.2°
Min59.0°-11.5°23.3°23.4°364.80.059.0°23.4°-29.2°16.1°
Avg68.6°-0.5°27.3°27.6°935.00.068.2°27.6°-18.4°21.0°
Total2804.90.0
ThresholdsHigh TempLow Temp 
>= 900 days 
>= 801 day0 days 
<= 3227 days64 days 
<= 00 days9 days 

Humidity

MonthHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Jan100%16%64%42.2°-20.0°12.0°
Feb100%15%65%40.4°-18.7°12.7°
Mar100%6%62%55.0°-3.5°28.2°
SUMMARYHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Max100%16%65%55.0°-3.5°28.2°
Min100%6%62%40.4°-20.0°12.0°
Avg100%12%64%45.9°-14.1°15.6°

Wind

MonthHigh SustainedAvg SustainedHigh GustAvg GustAvg DirectionWind Run
Jan12.0 mph2.7 mph26.0 mph7.7 mph310° NW2034.7 mi
Feb11.0 mph2.9 mph25.0 mph7.9 mph327° NNW1919.1 mi
Mar15.0 mph3.3 mph35.0 mph8.9 mph110° ESE1208.9 mi
SUMMARYHigh SustainedAvg SustainedHigh GustAvg GustAvg DirectionWind Run
Max15.0 mph3.3 mph35.0 mph8.9 mph2034.7 mi
Min11.0 mph2.7 mph25.0 mph7.7 mph1208.9 mi
Avg12.7 mph2.9 mph28.6 mph8.0 mph317° NW1825.6 mi
Total5162.7 mi

Rain

MonthLiquidSnow
Jan0.01"0.0"
Feb0.09"0.0"
Mar1.28"0.0"
SUMMARYLiquidSnow
Max1.28"0.0"
Min0.01"0.0"
Avg0.46"0.0"
Total1.38"0.0"
ThresholdsLiquidSnow
>= 0.01"9 days
>= 0.10"1 day0 days
>= 1"1 day0 days
>= 4"0 days0 days
>= 8"0 days

Pressure

MonthHigh PressureLow PressureAvg Pressure
Jan30.69"29.51"30.18"
Feb30.76"29.62"30.18"
Mar30.29"28.92"29.76"
SUMMARYHigh PressureLow PressureAvg Pressure
Max30.76"29.62"30.18"
Min30.29"28.92"29.76"
Avg30.58"29.35"30.09"

Solar

MonthHigh UVDaytime Avg UVHigh RadiationDaytime Avg RadiationTotal Radiation
Jan2.40.6677 W/m2177 W/m2191.19 MJ/m2
Feb4.61.0935 W/m2234 W/m2252.75 MJ/m2
Mar5.01.4914 W/m2284 W/m2179.08 MJ/m2
SUMMARYHigh UVDaytime Avg UVHigh RadiationDaytime Avg RadiationTotal Radiation
Max5.01.4935 W/m2284 W/m2252.75 MJ/m2
Min2.40.6677 W/m2177 W/m2179.08 MJ/m2
Avg4.00.9842 W/m2221 W/m2207.67 MJ/m2
Total623.02 MJ/m2

Air

MonthHigh AQILow AQIAvg AQIHigh ADJ AQILow ADJ AQIAvg ADJ AQIHigh ADJ PM2.5Low ADJ PM2.5Avg ADJ PM2.5
JanN/AN/AN/AN/AN/AN/AN/AN/AN/A
FebN/AN/AN/AN/AN/AN/AN/AN/AN/A
MarN/AN/AN/AN/AN/AN/AN/AN/AN/A
SUMMARYHigh AQILow AQIAvg AQIHigh ADJ AQILow ADJ AQIAvg ADJ AQIHigh ADJ PM2.5Low ADJ PM2.5Avg ADJ PM2.5
Max
Min
Avg
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Omaha, NE Normals

Month TempHi TempLo TempAv Depart Rain Snow
January 33.6° F 15.2° F 24.4° F 0.0° F 0.75" 7.2"
February 38.6° F 19.3° F 28.9° F 0.0° F 0.95" 7.8"
March 52.1° F 30.0° F 41.0° F 0.0° F 1.79" 3.0"
April 64.1° F 41.1° F 52.6° F 0.0° F 3.17" 1.0"
May 74.6° F 52.7° F 63.6° F 0.0° F 4.66" 0.1"
June 84.4° F 63.4° F 73.9° F 0.0° F 4.44" 0.0"
July 88.1° F 68.0° F 78.1° F 0.0° F 3.55" 0.0"
August 85.8° F 65.6° F 75.7° F 0.0° F 4.60" 0.0"
September 79.1° F 56.1° F 67.6° F 0.0° F 2.96" 0.0"
October 65.5° F 43.2° F 54.4° F 0.0° F 2.32" 0.5"
November 50.3° F 30.2° F 40.2° F 0.0° F 1.45" 1.7"
December 37.7° F 19.8° F 28.7° F 0.0° F 1.22" 5.8"
SUMMARY TempHi TempLo TempAv Depart Rain Snow
Avg 62.8° F 42.1° F 52.4° F 0.00
Total 31.86" 27.1"
Based on official Omaha averages 1991-2020
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Station Records


marquetteweather.com

Highest recorded temperature: 81.9 °F on Oct 29, 2024
Lowest recorded temperature: -11.5 °F on Feb 21, 2025
Total recorded temperature range: 93.4 °F

Highest recorded pressure: 30.76 inHg on Feb 19, 2025
Lowest recorded pressure: 28.92 inHg on Mar 14, 2025
Total recorded pressure range: 1.84 inHg

Highest recorded wind speed: 35.0 MPH on Mar 5, 2025

Wettest day on record: Nov 18, 2024 with 1.25 in of rain.

Sunniest day on record: Oct 13, 2024 with 16.1 hours of sunshine.

Official Weather Data

Forecast Accuracy

Check the accuracy of forecasted temperatures

* * * * *

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Notes:

General

  • The above data, with the exception of normals, were produced by a private weather station located near 132nd & Pacific in Omaha, NE. The station went online October 12, 2024.
  • If you're seeking official weather data for Omaha, please visit NOAA NOWData.

Temperatures

  • "NWS" averages are the sum of the daily high temperature & daily low temperature in whole degrees divided by 2. This is the National Weather Service method used for climatological summaries. All other fields labelled "Avg" contain integrated averages using one minute samples. "Avg" labelled summary columns contain weighted means (i.e. a partial hour/day/month counts less than a full one).
  • CDD = Cooling Degree Days & HDD = Heating Degree Days. Degree days are calculated using daily NWS averages compared to a base value of 65°. For example, a day with an avg temperature of 67.7° will have 2.7 CDDs & 0 HDDs. A 33.2° avg temperature will produce 31.8 HDDs & 0 CDDs.
  • In the daily & monthly history tables, "Wind Chill" appears only October through April. It is calculated when the temperature is 50 or below and maximum wind speed is greater than 3 mph. Otherwise, it equals the temperature. Likewise, "Heat Index" appears only May through September. It is calculated only when the temperature is 80 or above. Otherwise, it equals the temperature.
  • Since our anemometer is at 8' AGL (rather than 33') we use the 10-minute average maximum wind speed to calculate wind chill which is a reasonable approximation of actual 10 meter sustained speeds (the parameter normally used to calculate wind chill). This has been verified via many comparisons between our max wind speeds and Millard Airport's sustained wind readings measured about 3 miles away.

Wind

  • "Sustained" wind is the rolling 10 minute average sustained wind speed.
  • "Wind Dir" is a scalar average of direction irrespective of speed. However, calm winds do not have a valid direction and are not included in the average.
  • "Wind Run" uses the 10 minute wind average.
  • "Low Sustained" & "Low Max" wind values are omitted from the yearly history table since every field equals 0.

Humidity / Dew Point

  • Daily, monthly, and yearly history tables contain corrected humidities and dew points. A custom correction curve addresses an upper end dry bias and a mid-range wet bias inherent to the sensor. A third-party device accurate to within 2% humidity established the deltas used in the algorithm. The daily table contains up-to-date corrections for today. The monthly and yearly tables have corrections through yesterday (updated just after midnight each morning).

Precipitation

  • "Liquid" precipitation in the winter is the amount of melted snow and/or ice.

Pressure

  • Pressure is recorded in altimeter format. The home page, however, displays "Barometer" in MSLP format by default.

Solar

  • UV index is a measurement of ultraviolet radiation at wavelengths of 290 to 390 nm. Scale is 0-16.
  • The scale for solar radiation is 0 - 1800 Watts per meter squared. This measurement of the sun's energy (detected between 300 and 1100 nanometers wavelength) can approximate daylight cloud cover relative to clear days for a given time of year. It's also useful for determining solar electricity generation and aerosol levels (pollution, smoke, dust, ash, etc).
  • The daily table summary footer for this tab omits "Min" since every value is always 0. Instead you'll see a "Daytime Avg" row displaying weighted averages of all hourly maximums, minimums, and averages between sunrise & sunset.
  • In monthly & yearly tables, you'll see a "Daytime Avg" column containing daylight averages. The "Min" column will be entirely missing since every value would be 0.
  • Total Radiation is measured in Megajoules (1,000,000 J) per meter squared.

Normals

  • "Depart" in the Normals table refers to the average departure (or difference) between our weather station and the official Omaha average temperature.
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