September
September · May · June
Ukraine · 1991–2020
September leads for comfortable weather in Pervomayske: typically 24°C by day, 11°C at night, with 34 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
May · September · October
The weakest month is January, scoring 5 against September’s 91 — days reach only 1.8°C, 22° 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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 1.8°C | -4.7°C | 29 mm | 6.5 | 4.8°C | 9 h 03 | 5 | Strong coverage |
| February | 3.3°C | -4.4°C | 25 mm | 5.3 | 3.7°C | 10 h 17 | 5 | Strong coverage |
| March | 9°C | -0.7°C | 28 mm | 6.3 | 4.6°C | 11 h 46 | 19 | Strong coverage |
| April | 16.5°C | 4°C | 33 mm | 5.3 | 9.2°C | 13 h 27 | 53 | Strong coverage |
| May | 23.2°C | 9.5°C | 39 mm | 5.8 | 16.2°C | 14 h 53 | 84 | Strong coverage |
| June | 27.8°C | 14.6°C | 52 mm | 6 | 21.5°C | 15 h 41 | 82 | Strong coverage |
| July | 30.9°C | 17°C | 38 mm | 4.2 | 24.1°C | 15 h 22 | 72 | Strong coverage |
| August | 30.5°C | 16.4°C | 34 mm | 3.6 | 24.3°C | 14 h 07 | 76 | Strong coverage |
| September | 24°C | 11°C | 34 mm | 4.3 | 20.3°C | 12 h 29 | 91 | Strong coverage |
| October | 16.4°C | 5.4°C | 29 mm | 4.5 | 15.5°C | 10 h 51 | 56 | Strong coverage |
| November | 8.7°C | 0.7°C | 36 mm | 5.9 | 10.8°C | 9 h 25 | 21 | Strong coverage |
| December | 3.7°C | -2.6°C | 31 mm | 6.2 | 7.3°C | 8 h 42 | 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 | 16.3°C1 Jan 1971 | -30.3°C26 Jan 1954 | 19 mm12 Jan 1987 | 100 mm1915 · driest 1 mm in 1964 | 92 |
| February | 20.6°C26 Feb 1989 | -32.5°C14 Feb 1911 | 26 mm27 Feb 2005 | 82 mm2010 · driest 1 mm in 1929 | 93 |
| March | 23.9°C29 Mar 1940 | -22.5°C9 Mar 1985 | 30 mm24 Mar 1975 | 54 mm1973 · driest 1 mm in 1986 | 95 |
| April | 32.1°C30 Apr 2012 | -8.7°C7 Apr 1942 | 37 mm23 Apr 1938 | 99 mm1938 · driest 0 mm in 1952 | 94 |
| May | 35.6°C27 May 2007 | -2.6°C11 May 1945 | 123 mm26 May 1938 | 133 mm1938 · driest 1 mm in 1947 | 95 |
| June | 38.6°C26 Jun 2009 | 0.9°C9 Jun 1958 | 69 mm23 Jun 1995 | 142 mm1966 · driest 0 mm in 1957 | 94 |
| July | 40.1°C28 Jul 1971 | 1.3°C17 Jul 1993 | 103 mm1 Jul 2005 | 131 mm2005 · driest 0 mm in 2014 | 94 |
| August | 43.7°C3 Aug 1929 | 3.8°C31 Aug 1966 | 67 mm3 Aug 1937 | 135 mm1937 · driest 0 mm in 2018 | 95 |
| September | 37.0°C3 Sep 2015 | -4.8°C30 Sep 1977 | 45 mm11 Sep 1973 | 124 mm1996 · driest 0 mm in 1943 | 94 |
| October | 33.5°C3 Oct 1999 | -11.2°C29 Oct 1912 | 46 mm13 Oct 1984 | 87 mm1915 · driest 0 mm in 1951 | 95 |
| November | 25.4°C1 Nov 1932 | -22.4°C27 Nov 1953 | 34 mm15 Nov 1992 | 113 mm1981 · driest 1 mm in 1929 | 93 |
| December | 18.0°C5 Dec 2008 | -24.3°C27 Dec 1953 | 45 mm11 Dec 2018 | 97 mm2005 · driest 1 mm in 1972 | 91 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 24 | <1 |
| February | 0 | 0 | 22 | <1 |
| March | 0 | 0 | 17 | <1 |
| April | <1 | <1 | 4 | 1 |
| May | 11 | 3 | <1 | 1 |
| June | 23 | 10 | 0 | 2 |
| July | 30 | 18 | 0 | 1 |
| August | 28 | 17 | 0 | 1 |
| September | 14 | 3 | <1 | 1 |
| October | 2 | <1 | 4 | <1 |
| November | 0 | 0 | 13 | 1 |
| December | 0 | 0 | 20 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 88); on 2011–2025 it is May (90). 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% | 22% | 2% | 22% | -3.3–4.4°C |
| February | <1% | 19% | 1% | 20% | -1.5–6.2°C |
| March | 2% | 17% | 1% | 15% | 3.9–11.2°C |
| April | 21% | 17% | 3% | 17% | 13.4–18.9°C |
| May | 64% | 19% | 4% | 19% | 20.1–25.8°C |
| June | 78% | 21% | 5% | 19% | 24.8–29.8°C |
| July | 84% | 15% | 4% | 12% | 27.2–32.3°C |
| August | 88% | 12% | 4% | 7% | 26.1–31.9°C |
| September | 70% | 13% | 3% | 9% | 20.7–26.2°C |
| October | 22% | 14% | 3% | 11% | 13.0–18.8°C |
| November | <1% | 20% | 3% | 21% | 5.5–11.3°C |
| December | 0% | 21% | 2% | 22% | 0.2–6.6°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