Climate normals are currently calculated every 10 years by the NCEI and are based upon an average of 30 years of climate data. Additional information can by found on the NCEI website at: https://www.ncei.noaa.gov/access/us-climate-normals/
Jackson Normals
Average Temperature
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
47.0 | 50.9 | 57.9 | 64.9 | 72.9 | 79.6 | 82.1 | 81.8 | 76.9 | 66.2 | 55.4 | 49.1 | 65.4 |
| '81-'10 Normals |
45.7 | 49.5 | 56.9 | 64.1 | 72.3 | 79.0 | 81.6 | 81.3 | 75.6 | 65.1 | 55.7 | 47.8 | 64.6 |
| '71-'00 Normals |
45.0 | 49.2 | 56.8 | 63.4 | 71.5 | 78.5 | 81.4 | 80.9 | 75.5 | 64.4 | 54.8 | 47.6 | 64.1 |
| 91-20 vs 81-10 Difference | +1.3 | +1.4 | +1.0 | +0.8 | +0.6 | +0.6 | +0.5 | +0.5 | +1.3 | +1.1 | -0.3 | +1.3 | +0.8 |
High Temperature
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
57.4 | 62.0 | 69.4 | 76.5 | 83.8 | 89.9 | 92.1 | 92.2 | 87.8 | 78.3 | 67.2 | 59.6 | 76.3 |
| '81-'10 Normals |
56.1 | 60.5 | 68.5 | 75.9 | 83.1 | 89.5 | 91.6 | 91.6 | 86.7 | 77.2 | 67.4 | 58.2 | 75.6 |
| '71-'00 Normals |
55.1 | 60.3 | 68.1 | 75.0 | 82.1 | 88.9 | 91.4 | 91.4 | 86.4 | 76.8 | 66.3 | 57.9 | 75.0 |
| 91-20 vs 81-10 Difference | +1.3 | +1.5 | +0.9 | +0.6 | +0.7 | +0.4 | +0.5 | +0.6 | +1.1 | +1.1 | -0.2 | +1.4 | +0.7 |
Low Temperature
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
36.6 | 39.8 | 46.4 | 53.3 | 62.1 | 69.4 | 72.2 | 71.5 | 66.0 | 54.2 | 43.6 | 38.7 | 54.5 |
| '81-'10 Normals |
35.3 | 38.5 | 45.3 | 52.2 | 61.6 | 68.6 | 71.6 | 70.9 | 64.6 | 53.1 | 44.0 | 37.3 | 53.7 |
| '71-'00 Normals |
35.0 | 38.2 | 45.4 | 51.7 | 61.0 | 68.1 | 71.4 | 70.3 | 64.6 | 52.0 | 43.4 | 37.3 | 53.2 |
| 91-20 vs 81-10 Difference | +1.3 | +1.3 | +1.1 | +1.1 | +0.5 | +0.8 | +0.6 | +0.6 | +1.4 | +1.1 | -1.4 | +1.5 | +0.8 |
Precipitation
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
5.42" | 5.10" | 5.68" | 5.84" | 4.36" | 4.43" | 5.02" | 4.69" | 3.48" | 3.80" | 4.40" | 5.13" | 57.35" |
| '81-'10 Normals |
4.97" | 4.76" | 5.04" | 4.96" | 4.38" | 4.12" | 4.81" | 4.24" | 3.03" | 3.92" | 4.76" | 5.15" | 54.14" |
| '71-'00 Normals |
5.67" | 4.50" | 5.74" | 5.98" | 4.86" | 3.82" | 4.69" | 3.66" | 3.23" | 3.42" | 5.04" | 5.34" | 55.95" |
| 91-20 vs 81-10 Difference | +0.45" | +0.34" | +0.64" | +0.88" | -0.02" | +0.31" | +0.21" | +0.45" | +0.45" | -0.12" | -0.36" | -0.02" | +3.21" |
Snowfall
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
0.2" | 0.2" | 0.1" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.5" | 1.0" |
| '81-'10 Normals |
0.3" | 0.1" | 0.1" | 0.1" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.3" | 0.9" |
| '71-'00 Normals |
0.5" | 0.1" | 0.1" | T | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | T | 0.2" | 0.9" |
| 91-20 vs 81-10 Difference | -0.1" | +0.1" | 0.0" | -0.1" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | +0.2" | +0.1" |
Meridian Normals
Average Temperature
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
47.7 | 51.7 | 58.5 | 65.4 | 73.3 | 80.0 | 82.7 | 82.2 | 77.3 | 66.6 | 55.8 | 49.9 | 65.9 |
| '81-'10 Normals |
44.8 | 48.7 | 55.6 | 62.7 | 70.8 | 77.6 | 80.6 | 80.3 | 74.8 | 64.1 | 54.7 | 47.2 | 63.6 |
| '71-'00 Normals |
46.1 | 50.2 | 57.3 | 63.8 | 71.7 | 78.5 | 81.7 | 81.4 | 76.1 | 64.8 | 55.7 | 48.9 | 64.7 |
| 91-20 vs 81-10 Difference | +2.9 | +3.0 | +2.9 | +2.7 | +2.5 | +2.4 | +2.1 | +1.9 | +2.5 | +2.5 | +1.1 | +2.7 | +2.3 |
High Temperature
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
59.0 | 63.8 | 71.2 | 78.2 | 85.3 | 91.0 | 93.3 | 93.1 | 88.9 | 79.5 | 68.7 | 61.1 | 77.8 |
| '81-'10 Normals |
56.5 | 61.0 | 69.0 | 76.2 | 83.2 | 89.2 | 91.8 | 91.5 | 86.8 | 77.3 | 67.7 | 58.8 | 75.8 |
| '71-'00 Normals |
57.5 | 62.6 | 70.3 | 77.1 | 83.9 | 90.1 | 92.9 | 92.9 | 88.0 | 78.3 | 68.5 | 60.5 | 76.9 |
| 91-20 vs 81-10 Difference | +2.5 | +2.8 | +2.2 | +2.0 | +2.1 | +1.8 | +1.5 | +1.6 | +2.1 | +2.2 | +1.0 | +2.3 | +2.0 |
Low Temperature
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
36.4 | 39.7 | 45.9 | 52.6 | 61.3 | 68.9 | 72.0 | 71.3 | 65.6 | 53.7 | 42.9 | 38.6 | 54.1 |
| '81-'10 Normals |
33.1 | 36.4 | 42.3 | 49.1 | 58.5 | 66.1 | 69.4 | 69.0 | 62.9 | 51.0 | 41.6 | 35.6 | 51.3 |
| '71-'00 Normals |
34.7 | 37.7 | 44.3 | 50.4 | 59.5 | 66.8 | 70.5 | 69.8 | 64.2 | 51.3 | 42.8 | 37.2 | 52.4 |
| 91-20 vs 81-10 Difference | +3.3 | +3.3 | +3.6 | +3.5 | +2.8 | +2.8 | +2.6 | +2.3 | +2.9 | +2.7 | +1.3 | +3.0 | +2.8 |
Precipitation
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
5.61" | 5.35" | 5.66" | 5.56" | 4.20" | 4.64" | 5.11" | 4.36" | 3.17" | 3.86" | 4.21" | 5.27" | 57.00" |
| '81-'10 Normals |
5.13" | 5.60" | 5.42" | 4.78" | 4.50" | 4.40" | 5.14" | 3.99" | 3.43" | 3.76" | 4.95" | 5.06" | 56.16" |
| '71-'00 Normals |
5.92" | 5.35" | 6.93" | 5.62" | 4.87" | 3.99" | 5.45" | 3.34" | 3.64" | 3.28" | 4.95" | 5.31" | 58.65" |
| 91-20 vs 81-10 Difference | +0.48" | -0.25" | +0.24" | +0.78" | -0.30" | +0.24" | -0.03" | +0.37" | -0.26" | +0.10" | -0.74" | +0.21" | +0.84" |
Snowfall
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| '91-'20 Normals |
0.2" | 0.0" | 0.3" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.1" | 0.6" |
| '81-'10 Normals |
0.3" | 0.0" | 0.4" | 0.2" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.1" | 1.0" |
| '71-'00 Normals |
0.4" | T | 0.2" | 0.1" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | T | T | 0.7" |
| 91-20 vs 81-10 Difference | -0.1" | 0.0" | -0.1" | -0.2" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | 0.0" | -0.4" |
Additional Sites/Parameters
In addition to the information above, many other daily, monthly, seasonal, and annual normals are available. 1991-2020 normals information has been released for several sites across the region, including primary climate sites, airports, and NWS COOP stations. To view these sites, go to https://www.ncei.noaa.gov/access/us-climate-normals/
Questions/Comments
If you have questions or comments regarding the new climate normals for the National Weather Service Jackson, MS Forecast Area, please contact:
Climate Services Focal Point
234 Weather Service Dr.
Flowood, MS 39232
Phone 601-936-2189
Or send an email to nws.jacksonms@noaa.gov
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