October
October · April · May
United States · 1991–2020
October leads for comfortable weather in Vienna: typically 26.3°C by day, 12.9°C at night, with 65 mm of rain. Based on measured 1991–2020 NOAA station history.
October · April · May
May · September · August
November · March · October
The weakest month is January, scoring 35 against October’s 83 — days reach only 15.6°C, 8° below the 24°C the score treats as ideal, and nights drop to 3.1°C.
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 | 15.6°C | 3.1°C | 119 mm | 7.8 | 10 h 15 | 35 | Strong coverage |
| February | 18°C | 4.8°C | 110 mm | 6.7 | 11 h | 48 | Strong coverage |
| March | 22°C | 8°C | 121 mm | 7.1 | 11 h 53 | 65 | Strong coverage |
| April | 26.3°C | 11.9°C | 112 mm | 6.2 | 12 h 55 | 73 | Strong coverage |
| May | 30.4°C | 16.8°C | 75 mm | 5.7 | 13 h 47 | 68 | Strong coverage |
| June | 33°C | 20.8°C | 124 mm | 9.3 | 14 h 14 | 42 | Strong coverage |
| July | 34.3°C | 22.3°C | 116 mm | 9.1 | 14 h 03 | 36 | Strong coverage |
| August | 33.4°C | 21.8°C | 108 mm | 8.8 | 13 h 19 | 41 | Strong coverage |
| September | 30.9°C | 18.8°C | 116 mm | 5.9 | 12 h 20 | 56 | Strong coverage |
| October | 26.3°C | 12.9°C | 65 mm | 4.5 | 11 h 20 | 83 | Strong coverage |
| November | 20.9°C | 7°C | 82 mm | 5.3 | 10 h 28 | 67 | Strong coverage |
| December | 16.6°C | 4.3°C | 128 mm | 7.9 | 10 h 03 | 39 | 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 | 28.9°C7 Jan 1946 | -19.4°C21 Jan 1985 | 102 mm23 Jan 2017 | 296 mm2017 · driest 7 mm in 1950 | 95 |
| February | 29.4°C22 Feb 2018 | -12.8°C14 Feb 1905 | 90 mm2 Feb 1973 | 301 mm2013 · driest 0 mm in 1957 | 92 |
| March | 32.2°C11 Mar 1974 | -9.4°C3 Mar 1980 | 142 mm27 Mar 2005 | 309 mm1970 · driest 6 mm in 2004 | 94 |
| April | 35.6°C27 Apr 1986 | -1.1°C1 Apr 1987 | 113 mm15 Apr 1944 | 354 mm1944 · driest 11 mm in 1987 | 95 |
| May | 37.8°C22 May 1962 | 2.2°C6 May 1963 | 122 mm23 May 1943 | 249 mm1976 · driest 1 mm in 2007 | 95 |
| June | 41.1°C5 Jun 1985 | 7.2°C2 Jun 1955 | 89 mm9 Jun 1989 | 277 mm2005 · driest 26 mm in 2022 | 93 |
| July | 40.0°C19 Jul 1986 | 13.9°C15 Jul 1967 | 104 mm6 Jul 1991 | 295 mm2023 · driest 23 mm in 1986 | 93 |
| August | 40.0°C21 Aug 1983 | 13.3°C30 Aug 1986 | 81 mm8 Aug 1959 | 241 mm1964 · driest 21 mm in 2014 | 95 |
| September | 38.3°C8 Sep 1990 | 2.8°C30 Sep 1967 | 236 mm3 Sep 1998 | 475 mm2004 · driest 1 mm in 1984 | 93 |
| October | 37.2°C4 Oct 2019 | -2.8°C30 Oct 1952 | 151 mm8 Oct 1941 | 308 mm2019 · driest 0 mm in 1943 | 90 |
| November | 31.7°C1 Nov 1961 | -12.8°C26 Nov 1950 | 105 mm29 Nov 1994 | 240 mm2015 · driest 0 mm in 1956 | 92 |
| December | 28.3°C30 Dec 1946 | -13.3°C25 Dec 1983 | 140 mm6 Dec 2016 | 327 mm2018 · driest 0 mm in 1956 | 90 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 10 | 4 |
| February | 3 | 0 | 6 | 3 |
| March | 11 | 1 | 2 | 4 |
| April | 21 | 6 | <1 | 3 |
| May | 29 | 20 | 0 | 2 |
| June | 30 | 26 | 0 | 4 |
| July | 31 | 30 | 0 | 4 |
| August | 31 | 29 | 0 | 4 |
| September | 28 | 21 | 0 | 3 |
| October | 22 | 6 | <1 | 2 |
| November | 7 | <1 | 3 | 2 |
| December | 2 | 0 | 8 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 20% | 24% | 12% | 23% | 12.7–19.1°C |
| February | 32% | 26% | 12% | 26% | 14.8–20.8°C |
| March | 53% | 24% | 12% | 20% | 19.4–24.5°C |
| April | 75% | 20% | 10% | 18% | 24.2–27.9°C |
| May | 79% | 20% | 9% | 19% | 28.4–31.6°C |
| June | 72% | 28% | 12% | 35% | 31.5–34.6°C |
| July | 68% | 32% | 13% | 39% | 32.1–35.5°C |
| August | 72% | 28% | 12% | 31% | 32.0–35.2°C |
| September | 80% | 20% | 9% | 19% | 29.2–33.0°C |
| October | 82% | 13% | 5% | 10% | 24.6–27.8°C |
| November | 53% | 17% | 7% | 14% | 18.8–23.3°C |
| December | 24% | 24% | 11% | 25% | 14.3–19.7°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