Climate Alton - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 39 | 44 | 53 | 66 | 75 | 84 |
| Average low in ºF Av. low Lo | 22 | 25 | 35 | 45 | 56 | 66 |
| Days with precipitation Days precip. DP | 7 | 7 | 9 | 10 | 11 | 8 |
| Av. precipitation in inch Av. precip. Pre. | 2.53 | 2.52 | 3.46 | 4.92 | 5.46 | 3.40 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 87 | 86 | 80 | 68 | 54 | 44 |
| Average low in ºF Av. low Lo | 69 | 67 | 60 | 48 | 37 | 27 |
| Days with precipitation Days precip. DP | 7 | 7 | 6 | 7 | 8 | 7 |
| Av. precipitation in inch Av. precip. Pre. | 3.95 | 3.30 | 3.38 | 2.93 | 3.43 | 2.59 |
Alton Climate Graph - Illinois Climate Chart
Daily normals Alton - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 39.6 | 23.6 | 0.08 | 0.08 | 0.00 | 0.00 |
| 2 Jan | 39.5 | 23.5 | 0.20 | 0.20 | 0.00 | 0.00 |
| 3 Jan | 39.5 | 23.4 | 0.28 | 0.28 | 0.00 | 0.00 |
| 4 Jan | 39.4 | 23.3 | 0.35 | 0.35 | 0.00 | 0.00 |
| 5 Jan | 39.4 | 23.3 | 0.47 | 0.47 | 0.00 | 0.00 |
| 6 Jan | 39.3 | 23.2 | 0.55 | 0.55 | 0.00 | 0.00 |
| 7 Jan | 39.3 | 23.1 | 0.63 | 0.63 | 0.00 | 0.00 |
| 8 Jan | 39.3 | 23.1 | 0.71 | 0.71 | 0.00 | 0.00 |
| 9 Jan | 39.3 | 23.0 | 0.79 | 0.79 | 0.00 | 0.00 |
| 10 Jan | 39.3 | 22.9 | 0.87 | 0.87 | 0.00 | 0.00 |
| 11 Jan | 39.3 | 22.9 | 0.94 | 0.94 | 0.00 | 0.00 |
| 12 Jan | 39.3 | 22.9 | 1.02 | 1.02 | 0.00 | 0.00 |
Weather history Alton - December 2019
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Dec | 52.0 | 39.9 | 0.63 | - | - |
| 02 Dec | 39.9 | 33.1 | 0.00 | - | - |
| 03 Dec | 37.0 | 28.9 | 0.00 | - | - |
| 04 Dec | 46.0 | 28.0 | 0.00 | - | - |
| 05 Dec | 51.1 | 28.0 | 0.00 | 0.00 | 0.0 |
| 06 Dec | 59.0 | 34.0 | 0.00 | - | - |
| 07 Dec | 59.0 | 28.9 | 0.00 | - | - |
| 09 Dec | 59.0 | - | 0.07 | - | - |
| 10 Dec | 52.0 | 21.9 | 0.00 | - | - |
| 11 Dec | 52.0 | 21.0 | 0.00 | - | - |
| 12 Dec | 43.0 | 21.9 | 0.00 | - | - |
| 13 Dec | 50.0 | - | 0.00 | - | - |
| 14 Dec | 50.0 | - | 0.00 | - | - |
| 15 Dec | 50.0 | 21.9 | 0.04 | - | - |
| 16 Dec | - | - | - | 4.02 | 3.0 |
| 17 Dec | 27.0 | 25.0 | 0.23 | - | - |
| 18 Dec | 30.9 | 21.9 | 0.00 | - | 3.0 |
| 19 Dec | 30.9 | 21.9 | 0.00 | - | - |
| 20 Dec | 42.1 | 23.0 | 0.00 | - | - |
| 21 Dec | 45.0 | 30.9 | 0.00 | - | - |
| 22 Dec | 51.1 | 30.9 | 0.00 | - | - |
| 23 Dec | 51.1 | 30.0 | 0.00 | 0.00 | - |
| 24 Dec | 57.0 | 30.9 | 0.00 | 0.00 | 0.0 |
| 25 Dec | 57.0 | 32.0 | 0.00 | 0.00 | 0.0 |
| 26 Dec | 64.9 | 42.1 | 0.00 | - | - |
| 27 Dec | 66.0 | 37.9 | 0.00 | 0.00 | 0.0 |
Past weather Alton
| Dec 19 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 48.9 ºF | 39 ºF | |
| Average low temperature Av. low temp. | 28.8 ºF | 22 ºF | |
| Total precipitation Total precip. | 0.97 inch | 2.53 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 66.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 27.0 ºF | - | |
| Highest min temperature Highest min temp. | 42.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 21.0 ºF | - | |
Past weather December 2019 incomplete - Missing data
Geo Alton - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | Madison | |
| City | Alton | |
| Zip Code | 62002 | |
| Longitude | -90.18 dec. degr. | |
| Latitude | 38.89 dec. degr. | |
| Altitude - Elevation | 495ft | |
| ICAO | - | |
| IATA | - |
Date and Time Alton - Illinois
| Local Time | 02:55 PM | |
|---|---|---|
| Sunrise | 06:43 AM | |
| Sunset | 07:06 PM | |
| Day/Night | Day | |
| Timezone | Chicago -6:00 | |
| Timezone DB | America - Chicago |
Map of Alton - Illinois
Alton weather averages
| Annual high temperature | 65ºF |
| Annual low temperature | 46ºF |
| Days per year with precip. | 94 days |
| Average annual precip. | 41.87 inch |
Station Data
Monthly averages Alton
Longitude: -90.1843, Latitude: 38.8906
Average weather Alton, IL - 62002
Monthly: 1991-2020 normals
History: 2007-2019
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...