September
September · June · July
United States · 1991–2020
September leads for comfortable weather in Moscow: typically 24.6°C by day, 5.9°C at night, with 26 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · July
July · August · September
June · May · September
The weakest month is January, scoring 5 against September’s 81 — days reach only 3.1°C, 21° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 3.1°C | -3.9°C | 85 mm | 12.6 | 8 h 56 | 5 | Strong coverage |
| February | 5.6°C | -2.9°C | 65 mm | 10.5 | 10 h 13 | 5 | Strong coverage |
| March | 10.1°C | -0.7°C | 78 mm | 11.9 | 11 h 45 | 12 | Strong coverage |
| April | 14.5°C | 1.6°C | 70 mm | 10.3 | 13 h 30 | 33 | Strong coverage |
| May | 19.7°C | 4.9°C | 66 mm | 8.7 | 15 h | 58 | Strong coverage |
| June | 23°C | 7.1°C | 45 mm | 6.8 | 15 h 50 | 78 | Strong coverage |
| July | 29.2°C | 9°C | 17 mm | 2.7 | 15 h 30 | 72 | Strong coverage |
| August | 29.9°C | 8.8°C | 18 mm | 2.4 | 14 h 12 | 70 | Strong coverage |
| September | 24.6°C | 5.9°C | 26 mm | 3.9 | 12 h 29 | 81 | Strong coverage |
| October | 15.8°C | 2°C | 62 mm | 8 | 10 h 48 | 41 | Strong coverage |
| November | 7.2°C | -1°C | 89 mm | 12.9 | 9 h 19 | 5 | Strong coverage |
| December | 2.5°C | -4.3°C | 88 mm | 12.6 | 8 h 34 | 5 | Strong coverage |
What has changed
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.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 14.4°C26 Jan 2015 | -32.2°C31 Jan 1950 | 49 mm10 Jan 2006 | 195 mm1970 · driest 8 mm in 1963 | 132 |
| February | 18.9°C24 Feb 1995 | -32.2°C2 Feb 1996 | 43 mm19 Feb 1968 | 155 mm1996 · driest 6 mm in 1903 | 132 |
| March | 23.9°C26 Mar 2025 | -23.3°C4 Mar 2019 | 44 mm31 Mar 1931 | 199 mm2012 · driest 10 mm in 1911 | 132 |
| April | 31.1°C24 Apr 1977 | -11.7°C1 Apr 1936 | 37 mm9 Apr 2019 | 145 mm1996 · driest 2 mm in 1911 | 133 |
| May | 34.4°C25 May 1928 | -7.2°C1 May 1954 | 45 mm13 May 2015 | 177 mm1948 · driest 1 mm in 1924 | 133 |
| June | 40.6°C29 Jun 2021 | -2.2°C3 Jun 2025 | 47 mm2 Jun 1971 | 122 mm1971 · driest 0 mm in 1910 | 132 |
| July | 40.6°C26 Jul 1928 | -0.6°C3 Jul 1999 | 48 mm27 Jul 1909 | 93 mm1909 · driest 0 mm in 2017 | 132 |
| August | 42.8°C4 Aug 1961 | -1.1°C29 Aug 1937 | 56 mm22 Aug 1992 | 128 mm1989 · driest 0 mm in 1969 | 131 |
| September | 38.9°C1 Sep 2025 | -6.7°C25 Sep 1934 | 48 mm16 Sep 1947 | 107 mm1940 · driest 0 mm in 1975 | 131 |
| October | 31.1°C2 Oct 1987 | -16.7°C29 Oct 2019 | 56 mm27 Oct 1994 | 157 mm2016 · driest 0 mm in 1987 | 130 |
| November | 22.8°C12 Nov 1999 | -25.6°C27 Nov 1896 | 61 mm8 Nov 1896 | 190 mm1906 · driest 1 mm in 1929 | 132 |
| December | 16.1°C1 Dec 2021 | -41.1°C30 Dec 1968 | 64 mm2 Dec 1998 | 204 mm2025 · driest 14 mm in 1985 | 132 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 3 | 6 |
| February | 0 | 0 | 21 | 2 | 5 |
| March | 0 | 0 | 19 | 3 | 3 |
| April | <1 | 0 | 11 | 2 | 1 |
| May | 6 | <1 | 4 | 2 | <1 |
| June | 11 | 2 | <1 | 2 | 0 |
| July | 26 | 15 | <1 | <1 | 0 |
| August | 27 | 17 | 0 | <1 | 0 |
| September | 15 | 6 | 3 | <1 | 0 |
| October | 2 | <1 | 10 | 2 | <1 |
| November | 0 | 0 | 18 | 3 | 3 |
| December | 0 | 0 | 27 | 3 | 8 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 38% | 7% | 51% | -1.4–4.4°C |
| February | 0% | 35% | 5% | 46% | 1.4–8.0°C |
| March | 1% | 34% | 6% | 45% | 5.8–11.9°C |
| April | 15% | 27% | 5% | 31% | 11.0–16.9°C |
| May | 39% | 25% | 5% | 30% | 15.8–21.6°C |
| June | 63% | 21% | 4% | 22% | 20.3–25.2°C |
| July | 90% | 8% | 2% | 4% | 26.3–31.3°C |
| August | 88% | 10% | 2% | 7% | 25.5–30.9°C |
| September | 66% | 15% | 3% | 15% | 19.7–26.7°C |
| October | 23% | 23% | 5% | 29% | 12.7–18.8°C |
| November | <1% | 37% | 8% | 53% | 4.3–9.8°C |
| December | 0% | 39% | 7% | 53% | -0.6–5.3°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