August
August · July · September
82climate match
United States · 1991–2020
Best time to visit
Carterville (historical).
August leads for comfortable weather in Carterville (historical): typically 26°C by day, 12.5°C at night, with 59 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortAugust
Typical high26°C
Typical low12.5°C
Rain in August59 mm
August
August · July · September
59climate match
September
September · June · August
87climate match
The weakest month is January, scoring 5 against August’s 82 — days reach only 2.4°C, 22° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
52.4° / -8.4°
Feb
52.6° / -8.4°
Mar
57.3° / -4.4°
Apr
1411° / -0.7°
May
3516.2° / 4.4°
Jun
6922.2° / 9.6°
Jul
7726.5° / 13.3°
Aug
8226° / 12.5°
Sep
7321.1° / 7.9°
Oct
2813° / 1.4°
Nov
56.7° / -4°
Dec
52.4° / -7.9°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 2.4°C | -8.4°C | 38 mm | 8.4 | 9 h 12 | 5 | Strong coverage |
| February | 2.6°C | -8.4°C | 47 mm | 7.8 | 10 h 22 | 5 | Strong coverage |
| March | 7.3°C | -4.4°C | 57 mm | 8.7 | 11 h 46 | 5 | Strong coverage |
| April | 11°C | -0.7°C | 90 mm | 10.6 | 13 h 23 | 14 | Strong coverage |
| May | 16.2°C | 4.4°C | 122 mm | 11.8 | 14 h 45 | 35 | Strong coverage |
| June | 22.2°C | 9.6°C | 97 mm | 10.5 | 15 h 30 | 69 | Strong coverage |
| July | 26.5°C | 13.3°C | 79 mm | 9.6 | 15 h 12 | 77 | Strong coverage |
| August | 26°C | 12.5°C | 59 mm | 7.1 | 14 h 02 | 82 | Strong coverage |
| September | 21.1°C | 7.9°C | 50 mm | 6.1 | 12 h 27 | 73 | Strong coverage |
| October | 13°C | 1.4°C | 84 mm | 8.1 | 10 h 54 | 28 | Strong coverage |
| November | 6.7°C | -4°C | 44 mm | 7.3 | 9 h 32 | 5 | Strong coverage |
| December | 2.4°C | -7.9°C | 38 mm | 7.6 | 8 h 52 | 5 | Strong coverage |
What has changed
Carterville (historical) runs +1.1°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
+1.8
Feb
-0.7
Mar
+2.8
Apr
+0.3
May
-0.2
Jun
+1.6
Jul
+0.9
Aug
+0.6
Sep
+2.8
Oct
0.0
Nov
+1.7
Dec
+1.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.6°C23 Jan 1981 | -38.3°C13 Jan 2024 | 43 mm27 Jan 1944 | 122 mm1949 · driest 2 mm in 1935 | 117 |
| February | 20.6°C16 Feb 2017 | -40.0°C8 Feb 1936 | 35 mm9 Feb 2002 | 110 mm1964 · driest 4 mm in 1932 | 116 |
| March | 26.1°C15 Mar 2015 | -28.9°C6 Mar 1920 | 68 mm11 Mar 1988 | 184 mm1977 · driest 5 mm in 1981 | 118 |
| April | 28.9°C21 Apr 1980 | -20.6°C3 Apr 2002 | 95 mm19 Apr 2006 | 229 mm2006 · driest 12 mm in 1952 | 117 |
| May | 31.7°C22 May 1925 | -13.3°C1 May 1909 | 146 mm31 May 1909 | 384 mm1946 · driest 12 mm in 1934 | 117 |
| June | 36.7°C16 Jun 2021 | -4.4°C2 Jun 1951 | 142 mm14 Jun 1976 | 302 mm1976 · driest 17 mm in 2002 | 118 |
| July | 38.3°C26 Jul 2024 | -0.6°C3 Jul 1921 | 75 mm2 Jul 1958 | 224 mm2019 · driest 11 mm in 1917 | 118 |
| August | 36.7°C7 Aug 1949 | -1.1°C25 Aug 1910 | 103 mm21 Aug 1964 | 197 mm1964 · driest 6 mm in 1959 | 117 |
| September | 35.6°C8 Sep 2022 | -11.1°C24 Sep 1926 | 86 mm5 Sep 1971 | 172 mm2006 · driest 0 mm in 2012 | 116 |
| October | 30.6°C5 Oct 1947 | -24.4°C28 Oct 1925 | 131 mm6 Oct 1994 | 319 mm2013 · driest 0 mm in 1965 | 117 |
| November | 24.4°C1 Nov 2016 | -28.3°C11 Nov 1911 | 84 mm1 Nov 2000 | 160 mm1956 · driest 1 mm in 1917 | 115 |
| December | 19.4°C4 Dec 1911 | -36.1°C24 Dec 1983 | 29 mm23 Dec 2014 | 99 mm1993 · driest 3 mm in 1986 | 117 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 | 10 |
| February | 0 | 0 | 26 | 1 | 10 |
| March | 0 | 0 | 24 | 2 | 9 |
| April | <1 | 0 | 17 | 3 | 8 |
| May | 2 | <1 | 6 | 4 | 2 |
| June | 10 | 2 | <1 | 3 | <1 |
| July | 21 | 8 | 0 | 3 | 0 |
| August | 20 | 6 | 0 | 2 | 0 |
| September | 9 | 2 | 2 | 1 | <1 |
| October | 1 | 0 | 13 | 2 | 5 |
| November | 0 | 0 | 22 | 1 | 8 |
| December | 0 | 0 | 28 | <1 | 9 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 86); on 2011–2025 it is June (85). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 24% | 2% | 24% | -2.6–4.5°C |
| February | 0% | 25% | 3% | 27% | -1.3–5.6°C |
| March | 2% | 28% | 4% | 35% | 1.6–9.2°C |
| April | 10% | 33% | 9% | 42% | 7.5–14.3°C |
| May | 27% | 35% | 10% | 46% | 13.5–19.2°C |
| June | 51% | 36% | 10% | 44% | 19.2–25.7°C |
| July | 72% | 26% | 7% | 28% | 24.7–29.1°C |
| August | 75% | 21% | 5% | 20% | 23.5–28.5°C |
| September | 57% | 19% | 4% | 18% | 18.1–23.6°C |
| October | 22% | 21% | 5% | 20% | 10.3–17.2°C |
| November | 2% | 21% | 3% | 21% | 3.0–10.1°C |
| December | 0% | 24% | 2% | 26% | -1.4–5.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page
Nearby, measured,
and named.
- Place identity
- GeoNames 5763398
- NOAA station
- USC00394834 · LEAD
- Station distance
- 1.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 44.34°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.