September
September · May · June
91climate match
China · 1991–2020
Best time to visit
Ul.
September leads for comfortable weather in Ul: typically 23.9°C by day, 11°C at night, with 29 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.9°C
Typical low11°C
Rain in September29 mm
July
July · June · August
75climate match
May
May · September · April
86climate match
The weakest month is January, scoring 5 against September’s 91 — days reach only -6.5°C, 30° 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
5-6.5° / -17.7°
Feb
5-1° / -13.3°
Mar
56.3° / -6.1°
Apr
5316.2° / 3.1°
May
9023.6° / 10.8°
Jun
7228.2° / 16.3°
Jul
5629.7° / 19.8°
Aug
6128.7° / 18°
Sep
9123.9° / 11°
Oct
4815.2° / 2.4°
Nov
53.8° / -7.3°
Dec
5-5° / -15.4°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -6.5°C | -17.7°C | 1 mm | 0.5 | 9 h 18 | 5 | Good coverage |
| February | -1°C | -13.3°C | 1 mm | 0.4 | 10 h 26 | 5 | Good coverage |
| March | 6.3°C | -6.1°C | 6 mm | 1.2 | 11 h 47 | 5 | Good coverage |
| April | 16.2°C | 3.1°C | 16 mm | 2.7 | 13 h 21 | 53 | Good coverage |
| May | 23.6°C | 10.8°C | 32 mm | 4.6 | 14 h 39 | 90 | Good coverage |
| June | 28.2°C | 16.3°C | 81 mm | 8.5 | 15 h 22 | 72 | Good coverage |
| July | 29.7°C | 19.8°C | 114 mm | 8.7 | 15 h 05 | 56 | Good coverage |
| August | 28.7°C | 18°C | 130 mm | 8.8 | 13 h 57 | 61 | Good coverage |
| September | 23.9°C | 11°C | 29 mm | 4.8 | 12 h 27 | 91 | Good coverage |
| October | 15.2°C | 2.4°C | 20 mm | 2.5 | 10 h 57 | 48 | Good coverage |
| November | 3.8°C | -7.3°C | 9 mm | 1.3 | 9 h 38 | 5 | Good coverage |
| December | -5°C | -15.4°C | 2 mm | 0.7 | 8 h 59 | 5 | Good coverage |
What has changed
Ul 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
+0.8
Feb
+2.2
Mar
+2.4
Apr
+2.0
May
+1.2
Jun
+1.1
Jul
+1.2
Aug
+1.0
Sep
+2.1
Oct
+1.7
Nov
+1.3
Dec
-0.2
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 9.7°C28 Jan 1983 | -33.9°C12 Jan 2001 | 12 mm1 Jan 2014 | 21 mm2018 · driest 0 mm in 1967 | 76 |
| February | 19.0°C27 Feb 1992 | -28.7°C28 Feb 1971 | 40 mm28 Feb 2018 | 52 mm2018 · driest 0 mm in 1953 | 76 |
| March | 25.6°C31 Mar 2002 | -26.3°C2 Mar 1951 | 30 mm1 Mar 2018 | 54 mm2018 · driest 0 mm in 2004 | 76 |
| April | 35.5°C26 Apr 2015 | -14.4°C3 Apr 1962 | 55 mm26 Apr 1983 | 83 mm1983 · driest 0 mm in 1994 | 76 |
| May | 39.4°C31 May 2014 | -1.9°C5 May 1963 | 56 mm26 May 2019 | 128 mm1962 · driest 4 mm in 1967 | 76 |
| June | 39.7°C8 Jun 2020 | 3.5°C5 Jun 1992 | 79 mm15 Jun 1998 | 179 mm2015 · driest 4 mm in 1970 | 76 |
| July | 39.1°C8 Jul 1951 | 10.8°C1 Jul 1987 | 115 mm4 Jul 2020 | 305 mm1994 · driest 26 mm in 2000 | 76 |
| August | 38.3°C6 Aug 1984 | 5.9°C29 Aug 2017 | 174 mm12 Aug 2006 | 421 mm2017 · driest 3 mm in 1989 | 75 |
| September | 33.5°C1 Sep 2012 | -1.9°C20 Sep 1977 | 49 mm8 Sep 1981 | 108 mm2021 · driest 1 mm in 1964 | 75 |
| October | 29.3°C4 Oct 1987 | -11.2°C29 Oct 1976 | 46 mm2 Oct 1954 | 86 mm1972 · driest 0 mm in 2021 | 75 |
| November | 21.1°C2 Nov 1971 | -23.8°C20 Nov 1967 | 48 mm8 Nov 2021 | 92 mm2021 · driest 0 mm in 2005 | 75 |
| December | 14.6°C3 Dec 1989 | -31.6°C26 Dec 2000 | 23 mm21 Dec 1979 | 32 mm2015 · driest 0 mm in 1984 | 75 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 30 | 0 |
| February | 0 | 0 | 27 | 0 |
| March | 0 | 0 | 27 | <1 |
| April | 2 | <1 | 8 | <1 |
| May | 12 | 3 | 0 | <1 |
| June | 24 | 11 | 0 | 2 |
| July | 29 | 15 | 0 | 3 |
| August | 28 | 11 | 0 | 2 |
| September | 13 | 2 | <1 | <1 |
| October | 1 | 0 | 9 | <1 |
| November | 0 | 0 | 26 | <1 |
| December | 0 | 0 | 30 | 0 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 2% | 0% | <1% | -10.1–-4.3°C |
| February | 0% | 3% | <1% | <1% | -5.5–1.0°C |
| March | <1% | 6% | <1% | 1% | 2.7–8.9°C |
| April | 24% | 10% | 1% | 5% | 13.4–18.5°C |
| May | 67% | 16% | 4% | 12% | 21.5–25.7°C |
| June | 72% | 28% | 8% | 32% | 25.8–29.9°C |
| July | 71% | 30% | 12% | 34% | 27.9–31.1°C |
| August | 77% | 25% | 9% | 20% | 26.9–29.8°C |
| September | 71% | 15% | 3% | 7% | 21.9–25.1°C |
| October | 19% | 10% | 2% | 4% | 12.9–17.0°C |
| November | <1% | 5% | <1% | <1% | 0.8–6.5°C |
| December | 0% | 2% | <1% | <1% | -7.8–-2.4°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 2034319
- NOAA station
- CHM00054135 · TONGLIAO
- Station distance
- 44 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 23 usable years
- Daylight
- Calculated from latitude 43.30°, 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.