September
September · June · August
77climate match
United States · 1991–2020
Best time to visit
Litchfield.
September leads for comfortable weather in Litchfield: typically 23.8°C by day, 10.3°C at night, with 103 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.8°C
Typical low10.3°C
Rain in September103 mm
July
July · August · June
69climate match
May
May · September · June
73climate match
The weakest month is January, scoring 5 against September’s 77 — days reach only 1.2°C, 23° 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
51.2° / -9.9°
Feb
52.9° / -9.1°
Mar
57.2° / -4.6°
Apr
2814.7° / 1.2°
May
6121° / 7.5°
Jun
7525.7° / 12.8°
Jul
6828.8° / 16°
Aug
7227.9° / 14.8°
Sep
7723.8° / 10.3°
Oct
3716.8° / 3.7°
Nov
1010.2° / -1.3°
Dec
54.2° / -6.1°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 1.2°C | -9.9°C | 90 mm | 8.3 | 9 h 21 | 5 | Strong coverage |
| February | 2.9°C | -9.1°C | 92 mm | 7.3 | 10 h 28 | 5 | Strong coverage |
| March | 7.2°C | -4.6°C | 110 mm | 8.4 | 11 h 47 | 5 | Strong coverage |
| April | 14.7°C | 1.2°C | 108 mm | 9.5 | 13 h 19 | 28 | Strong coverage |
| May | 21°C | 7.5°C | 97 mm | 10.6 | 14 h 37 | 61 | Strong coverage |
| June | 25.7°C | 12.8°C | 106 mm | 9.6 | 15 h 19 | 75 | Strong coverage |
| July | 28.8°C | 16°C | 95 mm | 9 | 15 h 02 | 68 | Strong coverage |
| August | 27.9°C | 14.8°C | 105 mm | 8.4 | 13 h 55 | 72 | Strong coverage |
| September | 23.8°C | 10.3°C | 103 mm | 8 | 12 h 26 | 77 | Strong coverage |
| October | 16.8°C | 3.7°C | 127 mm | 9.7 | 10 h 58 | 37 | Strong coverage |
| November | 10.2°C | -1.3°C | 101 mm | 8.9 | 9 h 40 | 10 | Strong coverage |
| December | 4.2°C | -6.1°C | 115 mm | 9.4 | 9 h 02 | 5 | Strong coverage |
What has changed
Litchfield runs +1.4°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
+1.5
Feb
+1.3
Mar
+0.7
Apr
+0.9
May
+1.2
Jun
+0.9
Jul
+1.7
Aug
+1.5
Sep
+2.2
Oct
+1.3
Nov
+1.3
Dec
+2.3
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.6°C7 Jan 2007 | -33.9°C18 Jan 1957 | 63 mm10 Jan 2024 | 267 mm1979 · driest 15 mm in 1980 | 126 |
| February | 24.4°C22 Feb 2018 | -37.2°C16 Feb 1943 | 64 mm10 Feb 2008 | 416 mm2008 · driest 2 mm in 1987 | 128 |
| March | 29.4°C29 Mar 1998 | -27.8°C6 Mar 1948 | 83 mm1 Mar 1900 | 279 mm2010 · driest 0 mm in 1915 | 127 |
| April | 33.9°C18 Apr 2002 | -13.3°C1 Apr 1969 | 94 mm16 Apr 2007 | 272 mm2007 · driest 12 mm in 1941 | 126 |
| May | 37.8°C22 May 1911 | -6.7°C20 May 1936 | 119 mm14 May 2006 | 316 mm2006 · driest 12 mm in 2015 | 125 |
| June | 38.3°C25 Jun 2025 | -0.6°C6 Jun 1964 | 107 mm15 Jun 1942 | 270 mm1998 · driest 7 mm in 1912 | 128 |
| July | 41.1°C4 Jul 1911 | 2.8°C7 Jul 1965 | 90 mm24 Jul 1887 | 376 mm2021 · driest 11 mm in 1968 | 125 |
| August | 40.6°C27 Aug 1948 | -0.6°C31 Aug 1965 | 127 mm20 Aug 1991 | 240 mm1990 · driest 15 mm in 2007 | 128 |
| September | 37.2°C2 Sep 1953 | -5.0°C28 Sep 1947 | 148 mm16 Sep 1932 | 293 mm1954 · driest 3 mm in 1948 | 126 |
| October | 32.8°C17 Oct 1947 | -11.1°C27 Oct 1936 | 122 mm9 Oct 2005 | 376 mm2005 · driest 13 mm in 1947 | 128 |
| November | 27.2°C3 Nov 1950 | -21.7°C25 Nov 1938 | 103 mm3 Nov 1927 | 247 mm2018 · driest 16 mm in 1939 | 127 |
| December | 22.8°C7 Dec 2001 | -31.1°C30 Dec 1933 | 104 mm27 Dec 1969 | 225 mm1969 · driest 19 mm in 1943 | 127 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 4 | 5 |
| February | 0 | 0 | 26 | 3 | 5 |
| March | <1 | 0 | 25 | 4 | 3 |
| April | 2 | <1 | 13 | 3 | <1 |
| May | 8 | 2 | <1 | 3 | 0 |
| June | 18 | 6 | 0 | 3 | 0 |
| July | 26 | 13 | 0 | 3 | 0 |
| August | 25 | 10 | 0 | 3 | 0 |
| September | 13 | 3 | <1 | 3 | 0 |
| October | 2 | 0 | 8 | 4 | <1 |
| November | <1 | 0 | 20 | 3 | <1 |
| December | 0 | 0 | 27 | 5 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 29% | 11% | 33% | -2.0–3.9°C |
| February | <1% | 27% | 11% | 31% | -0.4–4.8°C |
| March | 2% | 28% | 11% | 33% | 4.3–10.0°C |
| April | 15% | 30% | 11% | 39% | 11.8–16.4°C |
| May | 46% | 31% | 10% | 38% | 18.6–23.4°C |
| June | 66% | 30% | 9% | 36% | 23.5–27.7°C |
| July | 72% | 28% | 10% | 30% | 26.8–30.4°C |
| August | 72% | 27% | 10% | 28% | 25.4–28.9°C |
| September | 60% | 25% | 9% | 25% | 21.2–25.3°C |
| October | 24% | 26% | 10% | 28% | 14.5–19.1°C |
| November | 3% | 29% | 11% | 33% | 7.4–12.6°C |
| December | <1% | 28% | 12% | 32% | 0.3–6.0°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 5088753
- NOAA station
- USC00275712 · NASHUA 2 NNW
- Station distance
- 5.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 26 usable years
- Daylight
- Calculated from latitude 42.84°, 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.