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Harrison weather in numbers
measured normals and 10 years of recorded weather
Harrison swings 61°F across the year, from 90°F highs in July to 29°F lows in January, and May is usually the wettest month in a year that brings about 44 in of precipitation. Over 10 years of recorded weather it averages 150 days a year at 77°F or above, 75 of them at 86°F or above, 55 frost nights, and rain on 114 days.
Warmest month
July
90°F average high
Coldest month
January
29°F average low
Wettest month
May
44 in a year
Comfortable
3 months
March, April and October
Residents
13,000
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Warm days
150 days
a year at 77°F or above
Frost nights
55 nights
a year below 32°F
Rain days
114 days
a year with 0.04 in or more
Day counts are from the ERA5 reanalysis for Harrison’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.
The weather map: all three models at once
NWS, American, European side by side around Harrison and nearby towns.Live rain radar →
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Harrison hourly forecast: next 14 hours
consensus of the three models
Rain in the next 24 hours, model by model
each model's own hourly precipitation, side by side
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Harrison 10-day forecast, out to 14 days
where the models agree, and where they split
Harrison, Arkansas (AR) is at its warmest in Jul (average highs near 90°F) and coldest in Jan (lows around 29°F), with roughly 44 in of precipitation across the year. Below, compare what NWS, American, European forecast for Harrison right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
46°
29°
Feb
53°
32°
Mar
60°
40°
Apr
69°
48°
May
77°
58°
Jun
86°
65°
Jul
90°
70°
Aug
89°
69°
Sep
82°
62°
Oct
71°
51°
Nov
58°
40°
Dec
48°
32°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Harrison's weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+1.0°F
Around Harrison, the difference between 1995-2004 and 2015-2024 is +1.0°F, within the normal swing from year to year.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 95°F
11 fewer days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
10 fewer nights a year
2015-2024 against 1995-2004, below 32°F. Within the normal year-to-year swing
Average wind
−1%
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
Year
Temp vs average
Days >95°F vs avg
Frost nights vs avg
Wind vs avg
1995
−1.0°F
+8
+5
+2%
1996
−2.0°F
−4
+14
+6%
1997
−1.5°F
+4
+3
−3%
1998
+1.7°F
+27
−16
−3%
1999
+1.2°F
+10
−11
+2%
2000
−0.2°F
+17
+7
+2%
2001
+0.3°F
+9
+6
−3%
2002
−1.0°F
−11
+11
−3%
2003
−0.4°F
+5
+8
+2%
2004
−0.4°F
−19
−5
+2%
2005
+1.0°F
+12
−10
−3%
2006
+0.8°F
+4
−4
+2%
2007
+0.3°F
−2
+3
−3%
2008
−2.2°F
−14
+26
+6%
2009
−2.0°F
−14
+5
+2%
2010
−0.4°F
−3
+4
−3%
2011
+0.3°F
+18
−4
+2%
2012
+2.8°F
+21
−12
+6%
2013
−1.7°F
−5
+21
+2%
2014
−2.2°F
−6
+24
+2%
2015
−0.1°F
−19
−7
−3%
2016
+1.4°F
−7
−8
−3%
2017
+1.7°F
−13
−28
+2%
2018
−0.2°F
−7
+8
+2%
2019
−0.4°F
−15
+2
−3%
2020
−0.2°F
−15
−17
−3%
2021
+0.7°F
−6
−5
+2%
2022
−0.1°F
+15
+14
+2%
2023
+1.7°F
+7
−18
−3%
2024
+2.3°F
+3
−21
−3%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Harrison, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in the US?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
93
/100rank #1
91±0.9°F
97±1.1 mph
9396% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American
82
/100rank #2
83±1.7°F
94±2.0 mph
7184% hit
NOAA / NCEP (United States)College Park, Maryland, USA
The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.
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Common questions
What's the weather in Harrison today?
On this page we show what NWS, American, European each forecast for Harrison today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Harrison today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Harrison and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Harrison?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Harrison forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Harrison?
July is typically the warmest month in Harrison, with average highs around 90°F.
How cold does Harrison get?
The coldest month in Harrison is January, when overnight lows average about 29°F.
How much rain does Harrison get?
Harrison sees roughly 44 in of precipitation a year, with May usually the wettest month.
Is Harrison getting warmer?
Not clearly. In NASA's reanalysis for the area around Harrison, the difference between 1995-2004 and 2015-2024 is 1.0°F, within the normal swing from year to year.
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