June
June · September · July
81climate match
United States · 1991–2020
Best time to visit
Chester.
June leads for comfortable weather in Chester: typically 24.8°C by day, 5.8°C at night, with 18 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJune
Typical high24.8°C
Typical low5.8°C
Rain in June18 mm
July
July · August · June
63climate match
May
May · June · October
79climate match
The weakest month is January, scoring 5 against June’s 81 — days reach only 5.5°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.6°C.
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
55.5° / -5.6°
Feb
57.4° / -4.8°
Mar
510.2° / -3.2°
Apr
2914° / -1°
May
5819.3° / 2.5°
Jun
8124.8° / 5.8°
Jul
6929.9° / 8.8°
Aug
6929.3° / 7.8°
Sep
7525.9° / 4.7°
Oct
5418.8° / 0.5°
Nov
1110.2° / -2.9°
Dec
55.1° / -5.6°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 5.5°C | -5.6°C | 162 mm | 11.3 | 9 h 35 | 5 | Strong coverage |
| February | 7.4°C | -4.8°C | 135 mm | 9.3 | 10 h 36 | 5 | Strong coverage |
| March | 10.2°C | -3.2°C | 136 mm | 10.8 | 11 h 49 | 5 | Strong coverage |
| April | 14°C | -1°C | 67 mm | 8.6 | 13 h 13 | 29 | Strong coverage |
| May | 19.3°C | 2.5°C | 46 mm | 6.1 | 14 h 23 | 58 | Strong coverage |
| June | 24.8°C | 5.8°C | 18 mm | 3.1 | 15 h 02 | 81 | Strong coverage |
| July | 29.9°C | 8.8°C | 9 mm | 1.1 | 14 h 47 | 69 | Strong coverage |
| August | 29.3°C | 7.8°C | 4 mm | 0.9 | 13 h 46 | 69 | Strong coverage |
| September | 25.9°C | 4.7°C | 8 mm | 1.8 | 12 h 24 | 75 | Strong coverage |
| October | 18.8°C | 0.5°C | 43 mm | 4.5 | 11 h 04 | 54 | Strong coverage |
| November | 10.2°C | -2.9°C | 85 mm | 7.6 | 9 h 53 | 11 | Strong coverage |
| December | 5.1°C | -5.6°C | 149 mm | 10.5 | 9 h 19 | 5 | Strong coverage |
What has changed
Chester runs +0.5°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
+0.8
Feb
+0.3
Mar
-0.5
Apr
+0.3
May
-0.3
Jun
+1.0
Jul
+1.2
Aug
+1.3
Sep
+1.4
Oct
0.0
Nov
+0.9
Dec
-0.2
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.3°C26 Jan 2015 | -23.9°C23 Jan 1962 | 117 mm10 Jan 1995 | 595 mm1995 · driest 6 mm in 1976 | 67 |
| February | 21.1°C27 Feb 1986 | -23.3°C27 Feb 1962 | 152 mm20 Feb 2024 | 388 mm2024 · driest 0 mm in 1964 | 66 |
| March | 25.0°C23 Mar 1960 | -19.4°C3 Mar 1966 | 128 mm9 Mar 1995 | 494 mm1995 · driest 12 mm in 1977 | 66 |
| April | 28.9°C30 Apr 1981 | -15.0°C9 Apr 1999 | 59 mm7 Apr 2017 | 181 mm2006 · driest 2 mm in 1973 | 66 |
| May | 33.9°C30 May 1986 | -10.0°C6 May 1965 | 43 mm9 May 2005 | 131 mm2005 · driest 0 mm in 1975 | 66 |
| June | 37.2°C29 Jun 2024 | -4.4°C5 Jun 1982 | 55 mm12 Jun 1958 | 98 mm1958 · driest 0 mm in 2014 | 66 |
| July | 40.0°C12 Jul 2002 | -2.8°C6 Jul 1961 | 32 mm28 Jul 2020 | 51 mm1958 · driest 0 mm in 2003 | 66 |
| August | 39.4°C7 Aug 1972 | -2.8°C23 Aug 1978 | 39 mm26 Aug 2025 | 58 mm1976 · driest 0 mm in 1998 | 68 |
| September | 41.1°C4 Sep 2024 | -9.4°C19 Sep 1965 | 45 mm27 Sep 1957 | 95 mm1986 · driest 0 mm in 1995 | 67 |
| October | 32.2°C1 Oct 2010 | -11.1°C29 Oct 1971 | 150 mm13 Oct 1962 | 350 mm1962 · driest 0 mm in 1978 | 68 |
| November | 24.4°C1 Nov 1966 | -16.1°C15 Nov 1964 | 152 mm21 Nov 2024 | 319 mm2024 · driest 0 mm in 1975 | 69 |
| December | 16.7°C31 Dec 1960 | -26.7°C9 Dec 1972 | 88 mm12 Dec 2014 | 372 mm1964 · driest 0 mm in 1989 | 68 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 5 | 5 |
| February | 0 | 0 | 26 | 4 | 4 |
| March | 0 | 0 | 27 | 4 | 2 |
| April | <1 | 0 | 20 | 2 | 1 |
| May | 6 | <1 | 8 | 1 | <1 |
| June | 17 | 5 | 1 | <1 | 0 |
| July | 27 | 16 | 0 | <1 | 0 |
| August | 28 | 14 | 0 | <1 | 0 |
| September | 20 | 6 | 2 | <1 | 0 |
| October | 4 | <1 | 15 | 2 | <1 |
| November | 0 | 0 | 24 | 3 | 2 |
| December | 0 | 0 | 28 | 5 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 36% | 16% | 45% | 3.5–8.1°C |
| February | <1% | 34% | 15% | 43% | 5.0–10.9°C |
| March | 5% | 33% | 12% | 39% | 7.2–14.0°C |
| April | 21% | 25% | 7% | 27% | 10.8–18.1°C |
| May | 53% | 19% | 4% | 16% | 17.3–22.7°C |
| June | 81% | 12% | 2% | 8% | 22.6–27.8°C |
| July | 96% | 4% | <1% | 1% | 27.4–31.9°C |
| August | 95% | 4% | <1% | 2% | 27.3–31.1°C |
| September | 86% | 8% | 2% | 5% | 23.2–28.2°C |
| October | 50% | 15% | 5% | 16% | 15.9–22.6°C |
| November | 3% | 27% | 11% | 33% | 7.3–13.4°C |
| December | 0% | 32% | 15% | 38% | 2.9–8.3°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 5561279
- NOAA station
- USC00041700 · CHESTER
- Station distance
- 1.1 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 28 usable years
- Daylight
- Calculated from latitude 40.31°, 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.