October
October · April · May
86climate match
China · 1991–2020
Best time to visit
Hefei.
October leads for comfortable weather in Hefei: typically 22.8°C by day, 13.6°C at night, with 62 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortOctober
Typical high22.8°C
Typical low13.6°C
Rain in October62 mm
September
September · May · June
83climate match
October
October · April · November
76climate match
The weakest month is January, scoring 9 against October’s 86 — days reach only 7.1°C, 17° 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
97.1° / -0.4°
Feb
2310.2° / 2.1°
Mar
4315.3° / 6.3°
Apr
7321.6° / 12°
May
6926.9° / 17.6°
Jun
4329.6° / 21.8°
Jul
2332.7° / 25.2°
Aug
3132.1° / 24.5°
Sep
6828.2° / 19.9°
Oct
8622.8° / 13.6°
Nov
5216.3° / 7.2°
Dec
249.9° / 1.3°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 7.1°C | -0.4°C | 58 mm | 8.1 | 10 h 16 | 9 | Strong coverage |
| February | 10.2°C | 2.1°C | 59 mm | 8.1 | 11 h 00 | 23 | Strong coverage |
| March | 15.3°C | 6.3°C | 87 mm | 9.1 | 11 h 53 | 43 | Good coverage |
| April | 21.6°C | 12°C | 100 mm | 8.6 | 12 h 55 | 73 | Strong coverage |
| May | 26.9°C | 17.6°C | 112 mm | 9.3 | 13 h 46 | 69 | Strong coverage |
| June | 29.6°C | 21.8°C | 182 mm | 9.8 | 14 h 13 | 43 | Strong coverage |
| July | 32.7°C | 25.2°C | 201 mm | 10.2 | 14 h 02 | 23 | Strong coverage |
| August | 32.1°C | 24.5°C | 167 mm | 10.5 | 13 h 19 | 31 | Strong coverage |
| September | 28.2°C | 19.9°C | 82 mm | 6.3 | 12 h 19 | 68 | Good coverage |
| October | 22.8°C | 13.6°C | 62 mm | 6.7 | 11 h 20 | 86 | Strong coverage |
| November | 16.3°C | 7.2°C | 68 mm | 7.2 | 10 h 29 | 52 | Strong coverage |
| December | 9.9°C | 1.3°C | 44 mm | 6.4 | 10 h 05 | 24 | Strong coverage |
What has changed
Hefei runs +2.1°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
+2.0
Feb
+2.7
Mar
+3.6
Apr
+2.4
May
+2.6
Jun
+1.6
Jul
+1.1
Aug
+1.4
Sep
+2.6
Oct
+0.9
Nov
+2.6
Dec
+1.1
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 22.1°C8 Jan 2023 | -20.6°C6 Jan 1955 | 40 mm18 Jan 1984 | 133 mm2018 · driest 0 mm in 1963 | 74 |
| February | 28.7°C21 Feb 2021 | -14.1°C5 Feb 1969 | 35 mm20 Feb 1990 | 149 mm2014 · driest 1 mm in 1968 | 74 |
| March | 32.5°C25 Mar 2025 | -7.3°C14 Mar 1957 | 55 mm26 Mar 2020 | 173 mm2022 · driest 9 mm in 2006 | 74 |
| April | 34.7°C25 Apr 2011 | -0.4°C3 Apr 1962 | 100 mm30 Apr 1967 | 208 mm2014 · driest 10 mm in 2011 | 73 |
| May | 37.3°C4 May 2020 | 6.2°C7 May 1960 | 108 mm19 May 1988 | 217 mm1964 · driest 6 mm in 2001 | 74 |
| June | 38.0°C29 Jun 1952 | 12.2°C7 Jun 1987 | 238 mm13 Jun 1984 | 374 mm2015 · driest 13 mm in 1958 | 74 |
| July | 41.1°C27 Jul 2017 | 17.5°C7 Jul 2015 | 199 mm18 Jul 2020 | 558 mm1954 · driest 18 mm in 1959 | 74 |
| August | 41.0°C23 Aug 1959 | 15.8°C30 Aug 2009 | 162 mm17 Aug 2018 | 349 mm1989 · driest 2 mm in 1966 | 74 |
| September | 38.6°C7 Sep 1995 | 10.8°C27 Sep 1982 | 110 mm24 Sep 1971 | 222 mm1975 · driest 0 mm in 2022 | 73 |
| October | 34.7°C4 Oct 2002 | 0.0°C28 Oct 2024 | 100 mm11 Oct 1975 | 266 mm2016 · driest 0 mm in 1979 | 73 |
| November | 30.3°C2 Nov 2023 | -5.1°C29 Nov 1979 | 52 mm1 Nov 1987 | 158 mm1967 · driest 0 mm in 1995 | 73 |
| December | 24.0°C8 Dec 2023 | -13.5°C29 Dec 1991 | 40 mm24 Dec 1991 | 130 mm1954 · driest 0 mm in 1999 | 73 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 15 | 2 |
| February | <1 | 0 | 8 | 2 |
| March | 1 | <1 | 1 | 3 |
| April | 7 | <1 | 0 | 3 |
| May | 20 | 7 | 0 | 3 |
| June | 25 | 14 | 0 | 4 |
| July | 28 | 23 | 0 | 5 |
| August | 28 | 22 | 0 | 4 |
| September | 24 | 8 | 0 | 2 |
| October | 9 | 1 | 0 | 2 |
| November | 1 | 0 | <1 | 2 |
| December | 0 | 0 | 10 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 20% | 5% | 19% | 4.8–9.4°C |
| February | 3% | 26% | 7% | 30% | 6.7–12.5°C |
| March | 14% | 28% | 9% | 31% | 11.7–17.4°C |
| April | 46% | 29% | 11% | 34% | 19.3–23.3°C |
| May | 71% | 26% | 11% | 25% | 23.9–28.6°C |
| June | 71% | 29% | 13% | 35% | 27.9–31.3°C |
| July | 68% | 32% | 16% | 39% | 30.3–34.6°C |
| August | 72% | 28% | 12% | 28% | 30.1–34.6°C |
| September | 78% | 22% | 8% | 23% | 26.0–29.5°C |
| October | 63% | 21% | 6% | 22% | 20.5–24.0°C |
| November | 20% | 21% | 7% | 23% | 14.0–18.5°C |
| December | 1% | 16% | 3% | 16% | 7.1–11.6°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
Nearby, measured,
and named.
- Place identity
- GeoNames 1808722
- NOAA station
- CHM00058321 · HEFEI
- Station distance
- 4.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 24 usable years
- Daylight
- Calculated from latitude 31.86°, 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.