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Jacksonville, Arkansas climate
Cfa Humid subtropical
Jacksonville has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 34°C, while the coldest is January averaging around 0°C at night. Precipitation is fairly even year-round, totalling about 1266 mm. Snow is occasional (8 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsJacksonville climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 13 | 18 | 23 | 27 | 32 | 34 | 34 | 30 | 24 | 17 | 12 |
| Avg temp (°C) | 5 | 8 | 12 | 17 | 22 | 26 | 28 | 27 | 24 | 17 | 11 | 7 |
| Avg low (°C) | 0 | 2 | 6 | 10 | 16 | 20 | 22 | 21 | 17 | 11 | 5 | 1 |
| Precipitation (mm) | 91 | 102 | 126 | 138 | 128 | 86 | 99 | 85 | 81 | 102 | 117 | 112 |
| Snowfall (cm) | 2 | 3 | 1 | — | — | — | — | — | — | 0 | 0 | 2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 13 | 18 | 23 | 27 | 32 |
| Avg temp (°C) | 5 | 8 | 12 | 17 | 22 | 26 |
| Avg low (°C) | 0 | 2 | 6 | 10 | 16 | 20 |
| Precipitation (mm) | 91 | 102 | 126 | 138 | 128 | 86 |
| Snowfall (cm) | 2 | 3 | 1 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 30 | 24 | 17 | 12 |
| Avg temp (°C) | 28 | 27 | 24 | 17 | 11 | 7 |
| Avg low (°C) | 22 | 21 | 17 | 11 | 5 | 1 |
| Precipitation (mm) | 99 | 85 | 81 | 102 | 117 | 112 |
| Snowfall (cm) | — | — | — | 0 | 0 | 2 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 9 | 10 | 9 | 11 | 8 | 8 | 7 | 6 | 7 | 8 | 9 |
| Days with high ≥ 32°C (days) | — | — | — | 0.3 | 3 | 15 | 21 | 20 | 10 | 2 | — | — |
| Days with low ≤ 0°C (days) | 17 | 12 | 5 | 0.6 | — | — | — | — | — | 0.5 | 7 | 13 |
| Days with snowfall ≥ 2.5 cm (days) | 0.2 | 0.3 | 0.2 | — | — | — | — | — | — | — | — | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 9 | 10 | 9 | 11 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | 0.3 | 3 | 15 |
| Days with low ≤ 0°C (days) | 17 | 12 | 5 | 0.6 | — | — |
| Days with snowfall ≥ 2.5 cm (days) | 0.2 | 0.3 | 0.2 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 7 | 6 | 7 | 8 | 9 |
| Days with high ≥ 32°C (days) | 21 | 20 | 10 | 2 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 0.5 | 7 | 13 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | — | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 64 | 62 | 57 | 60 | 53 | 49 | 45 | 43 | 46 | 54 | 60 |
| Clear days (≤ 30% cloud) | 8 | 6 | 7 | 8 | 7 | 9 | 10 | 12 | 13 | 13 | 9 | 8 |
| Partly cloudy days (30–70%) | 9 | 8 | 9 | 9 | 9 | 11 | 13 | 12 | 9 | 8 | 8 | 8 |
| Cloudy days (≥ 70%) | 15 | 15 | 15 | 13 | 15 | 10 | 8 | 8 | 8 | 10 | 13 | 15 |
| Relative humidity (%) | 83 | 81 | 80 | 78 | 79 | 74 | 69 | 65 | 65 | 68 | 76 | 82 |
| Wind speed (m/s) | 2.4 | 2.5 | 2.5 | 2.5 | 2.1 | 1.7 | 1.6 | 1.6 | 1.8 | 2.0 | 2.2 | 2.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 64 | 62 | 57 | 60 | 53 |
| Clear days (≤ 30% cloud) | 8 | 6 | 7 | 8 | 7 | 9 |
| Partly cloudy days (30–70%) | 9 | 8 | 9 | 9 | 9 | 11 |
| Cloudy days (≥ 70%) | 15 | 15 | 15 | 13 | 15 | 10 |
| Relative humidity (%) | 83 | 81 | 80 | 78 | 79 | 74 |
| Wind speed (m/s) | 2.4 | 2.5 | 2.5 | 2.5 | 2.1 | 1.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 45 | 43 | 46 | 54 | 60 |
| Clear days (≤ 30% cloud) | 10 | 12 | 13 | 13 | 9 | 8 |
| Partly cloudy days (30–70%) | 13 | 12 | 9 | 8 | 8 | 8 |
| Cloudy days (≥ 70%) | 8 | 8 | 8 | 10 | 13 | 15 |
| Relative humidity (%) | 69 | 65 | 65 | 68 | 76 | 82 |
| Wind speed (m/s) | 1.6 | 1.6 | 1.8 | 2.0 | 2.2 | 2.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Little Rock Afb, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.