Climate Alton - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 40 | 44 | 55 | 67 | 76 | 85 |
| Average low in ºF Av. low Lo | 23 | 26 | 36 | 47 | 57 | 66 |
| Av. precipitation in inch Av. precip. Pre. | 2.42 | 2.58 | 3.18 | 4.25 | 5.12 | 3.48 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 89 | 88 | 81 | 69 | 56 | 43 |
| Average low in ºF Av. low Lo | 70 | 69 | 60 | 49 | 38 | 27 |
| Av. precipitation in inch Av. precip. Pre. | 3.64 | 3.15 | 3.30 | 3.29 | 3.91 | 2.98 |
Av. high : Average high in ºF - Av.low : Average low in ºF - Av. precip. : Average precipitation in inch - Days precip. : Days with precipitation - Hours sun. : Hours of sunshine
Hi : Average high in ºF - Lo : Average low in ºF - Pre. : Average precipitation in inch - DP : Days with precipitation - Sun : Hours of sunshine
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 |
| 13 Jan | 39.3 | 22.8 | 1.10 | 1.10 | 0.00 | 0.00 |
| 14 Jan | 39.3 | 22.8 | 1.18 | 1.18 | 0.00 | 0.00 |
| 15 Jan | 39.4 | 22.8 | 1.26 | 1.26 | 0.00 | 0.00 |
| 16 Jan | 39.4 | 22.7 | 1.34 | 1.34 | 0.00 | 0.00 |
| 17 Jan | 39.5 | 22.7 | 1.42 | 1.42 | 0.00 | 0.00 |
| 18 Jan | 39.5 | 22.7 | 1.50 | 1.50 | 0.00 | 0.00 |
| 19 Jan | 39.6 | 22.7 | 1.57 | 1.57 | 0.00 | 0.00 |
| 20 Jan | 39.6 | 22.7 | 1.65 | 1.65 | 0.00 | 0.00 |
| 21 Jan | 39.7 | 22.7 | 1.73 | 1.73 | 0.00 | 0.00 |
| 22 Jan | 39.8 | 22.8 | 1.77 | 1.77 | 0.00 | 0.00 |
| 23 Jan | 39.9 | 22.8 | 1.85 | 1.85 | 0.00 | 0.00 |
| 24 Jan | 40.0 | 22.8 | 1.93 | 1.93 | 0.00 | 0.00 |
| 25 Jan | 40.1 | 22.9 | 2.01 | 2.01 | 0.00 | 0.00 |
| 26 Jan | 40.2 | 22.9 | 2.09 | 2.09 | 0.00 | 0.00 |
| 27 Jan | 40.3 | 23.0 | 2.17 | 2.17 | 0.00 | 0.00 |
| 28 Jan | 40.5 | 23.1 | 2.20 | 2.20 | 0.00 | 0.00 |
| 29 Jan | 40.6 | 23.2 | 2.28 | 2.28 | 0.00 | 0.00 |
| 30 Jan | 40.7 | 23.3 | 2.36 | 2.36 | 0.00 | 0.00 |
| 31 Jan | 40.9 | 23.4 | 2.40 | 2.40 | 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 | 43 ºF | |
| Average low temperature Av. low temp. | 28.8 ºF | 27 ºF | |
| Total precipitation Total precip. | 0.97 inch | 2.98 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 | 05:59 PM | |
|---|---|---|
| Sunrise | 06:08 AM | |
| Sunset | 08:03 PM | |
| Day / Night | Day | |
| Timezone | Chicago -6:00 | |
| Timezone DB | America/Chicago |
Map of Alton - Illinois
Alton weather averages
| Annual high temperature | 66ºF |
| Annual low temperature | 47ºF |
| Average annual precip. | 41.3 inch |
Station Data
Monthly averages Alton
Longitude: -90.1843, Latitude: 38.8906
Average weather Alton, IL - 62002
Monthly: 1981-2010 normals
History: 2007-2019
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...