Climate Decatur - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 34 | 39 | 51 | 63 | 74 | 82 |
| Average low in ºF Av. low Lo | 20 | 24 | 33 | 43 | 54 | 63 |
| Days with precipitation Days precip. DP | 9 | 8 | 9 | 11 | 13 | 10 |
| Av. precipitation in inch Av. precip. Pre. | 2.40 | 2.00 | 2.64 | 4.12 | 4.95 | 4.73 |
| Av. snowfall in inch Snowfall Sn | 6 | 3 | 1 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 85 | 83 | 78 | 65 | 50 | 39 |
| Average low in ºF Av. low Lo | 67 | 65 | 57 | 46 | 34 | 25 |
| Days with precipitation Days precip. DP | 9 | 7 | 7 | 9 | 9 | 9 |
| Av. precipitation in inch Av. precip. Pre. | 4.00 | 3.50 | 3.08 | 3.41 | 3.21 | 2.40 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 4 |
Decatur Climate Graph - Illinois Climate Chart
Daily normals Decatur - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 36.1 | 19.8 | 0.08 | 0.08 | 0.20 | 0.50 |
| 2 Jan | 36.0 | 19.7 | 0.16 | 0.16 | 0.31 | 0.80 |
| 3 Jan | 35.9 | 19.5 | 0.24 | 0.24 | 0.51 | 1.30 |
| 4 Jan | 35.9 | 19.4 | 0.35 | 0.35 | 0.71 | 1.80 |
| 5 Jan | 35.8 | 19.3 | 0.43 | 0.43 | 0.79 | 2.00 |
| 6 Jan | 35.8 | 19.2 | 0.51 | 0.51 | 0.98 | 2.50 |
| 7 Jan | 35.7 | 19.2 | 0.59 | 0.59 | 1.18 | 3.00 |
| 8 Jan | 35.7 | 19.1 | 0.67 | 0.67 | 1.30 | 3.30 |
| 9 Jan | 35.7 | 19.0 | 0.71 | 0.71 | 1.50 | 3.80 |
| 10 Jan | 35.6 | 18.9 | 0.79 | 0.79 | 1.61 | 4.10 |
| 11 Jan | 35.6 | 18.9 | 0.87 | 0.87 | 1.81 | 4.60 |
| 12 Jan | 35.6 | 18.8 | 0.91 | 0.91 | 1.89 | 4.80 |
Weather history Decatur - December 2019
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Dec | 46.9 | 32.0 | 0.12 | 0.12 | 0.0 |
| 02 Dec | 33.1 | 28.9 | 0.00 | - | - |
| 03 Dec | 39.0 | 27.0 | 0.00 | - | - |
| 04 Dec | 48.0 | 32.0 | 0.00 | - | - |
| 05 Dec | 53.1 | 27.0 | 0.00 | - | - |
| 06 Dec | 48.9 | 26.1 | 0.00 | - | - |
| 07 Dec | 42.1 | 24.1 | 0.00 | - | - |
| 08 Dec | 51.1 | 32.0 | 0.02 | - | - |
| 09 Dec | 48.9 | 23.0 | 0.00 | - | - |
| 10 Dec | 41.0 | 17.1 | 0.00 | - | - |
| 11 Dec | 33.1 | 17.1 | 0.00 | - | - |
| 12 Dec | 45.0 | 25.0 | 0.00 | - | - |
| 13 Dec | 45.0 | 30.9 | 0.00 | - | - |
| 14 Dec | 34.0 | 24.1 | 0.00 | - | - |
| 15 Dec | 25.0 | 18.0 | 0.22 | 2.28 | 2.0 |
| 16 Dec | 28.9 | 24.1 | 0.05 | 0.39 | 3.0 |
| 17 Dec | 28.9 | 17.1 | 0.00 | 0.00 | 3.0 |
| 18 Dec | 25.0 | 12.9 | 0.00 | 0.00 | 3.0 |
| 19 Dec | 34.0 | 12.9 | 0.00 | 0.00 | 2.0 |
| 20 Dec | 41.0 | 23.0 | 0.00 | - | 1.0 |
| 21 Dec | 42.1 | 26.1 | 0.00 | - | 1.0 |
| 22 Dec | 45.0 | 27.0 | 0.00 | - | - |
| 23 Dec | 52.0 | 30.9 | 0.00 | - | 0.0 |
| 24 Dec | 53.1 | 28.9 | 0.00 | - | - |
| 25 Dec | 60.1 | 36.0 | 0.00 | - | - |
| 26 Dec | 60.1 | 41.0 | 0.00 | - | - |
Past weather Decatur
| Dec 19 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 42.5 ºF | 34 ºF | |
| Average low temperature Av. low temp. | 25.5 ºF | 20 ºF | |
| Total precipitation Total precip. | 0.41 inch | 2.40 inch | |
| Total snowfall Total snowfall | 2.79 inch | 6 inch | |
| Highest max temperature Highest max temp. | 60.1 ºF | - | |
| Lowest max temperature Lowest max temp. | 25.0 ºF | - | |
| Highest min temperature Highest min temp. | 41.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 12.9 ºF | - | |
Past weather December 2019 incomplete - Missing data
Geo Decatur - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | - | |
| City | Decatur | |
| Zip Code | 62521 | |
| Longitude | -88.95 dec. degr. | |
| Latitude | 39.84 dec. degr. | |
| Altitude - Elevation | 676ft | |
| ICAO | - | |
| IATA | - |
Date and Time Decatur - Illinois
| Local Time | 10:58 PM | |
|---|---|---|
| Sunrise | 07:17 AM | |
| Sunset | 06:02 PM | |
| Day/Night | Night | |
| Timezone | Chicago -6:00 | |
| Timezone DB | America - Chicago |
Map of Decatur - Illinois
Decatur weather averages
| Annual high temperature | 62ºF |
| Annual low temperature | 44ºF |
| Days per year with precip. | 110 days |
| Average annual precip. | 40.44 inch |
| Av. annual snowfall | 14 inch |
Station Data
Monthly averages Decatur
Longitude: -88.9548, Latitude: 39.8403
Average weather Decatur, IL - 62521
Monthly: 1991-2020 normals
History: 2008-2019
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...