September
September · June · August
82climate match
United States · 1991–2020
Best time to visit
Highland.
September leads for comfortable weather in Highland: typically 26°C by day, 9.4°C at night, with 34 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high26°C
Typical low9.4°C
Rain in September34 mm
August
August · July · June
74climate match
May
May · September · October
79climate match
The weakest month is January, scoring 5 against September’s 82 — days reach only 4.1°C, 20° 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
54.1° / -5.5°
Feb
56.8° / -3.9°
Mar
2812.6° / -0.2°
Apr
4216.1° / 2.5°
May
7021.8° / 6.6°
Jun
7927.9° / 10.6°
Jul
7332° / 14.7°
Aug
7430.8° / 14.1°
Sep
8226° / 9.4°
Oct
5518.1° / 3.5°
Nov
2210.3° / -1.4°
Dec
53.8° / -5.5°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 4.1°C | -5.5°C | 62 mm | 8.7 | 9 h 35 | 5 | Strong coverage |
| February | 6.8°C | -3.9°C | 50 mm | 7.8 | 10 h 36 | 5 | Strong coverage |
| March | 12.6°C | -0.2°C | 52 mm | 7.7 | 11 h 49 | 28 | Strong coverage |
| April | 16.1°C | 2.5°C | 65 mm | 8.5 | 13 h 13 | 42 | Strong coverage |
| May | 21.8°C | 6.6°C | 62 mm | 7.4 | 14 h 24 | 70 | Strong coverage |
| June | 27.9°C | 10.6°C | 25 mm | 3.6 | 15 h 02 | 79 | Strong coverage |
| July | 32°C | 14.7°C | 17 mm | 2.9 | 14 h 47 | 73 | Strong coverage |
| August | 30.8°C | 14.1°C | 24 mm | 4.6 | 13 h 46 | 74 | Strong coverage |
| September | 26°C | 9.4°C | 34 mm | 4.5 | 12 h 25 | 82 | Strong coverage |
| October | 18.1°C | 3.5°C | 47 mm | 5.9 | 11 h 03 | 55 | Strong coverage |
| November | 10.3°C | -1.4°C | 40 mm | 6 | 9 h 53 | 22 | Strong coverage |
| December | 3.8°C | -5.5°C | 56 mm | 8.3 | 9 h 18 | 5 | Strong coverage |
What has changed
Highland runs +0.2°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
+0.7
Feb
+0.2
Mar
+1.2
Apr
-0.6
May
-0.2
Jun
+0.5
Jul
-0.3
Aug
-0.1
Sep
+0.4
Oct
-0.6
Nov
+1.0
Dec
+0.4
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.1°C17 Jan 1983 | -26.1°C31 Jan 1979 | 40 mm17 Jan 1996 | 185 mm2023 · driest 10 mm in 2022 | 49 |
| February | 21.1°C25 Feb 1986 | -28.9°C6 Feb 1989 | 32 mm7 Feb 2024 | 129 mm1980 · driest 2 mm in 2015 | 51 |
| March | 30.0°C26 Mar 2026 | -15.0°C5 Mar 1976 | 49 mm3 Mar 1978 | 148 mm1978 · driest 14 mm in 1976 | 49 |
| April | 30.6°C20 Apr 1989 | -11.1°C7 Apr 1983 | 48 mm15 Apr 2009 | 141 mm2009 · driest 5 mm in 1977 | 49 |
| May | 33.9°C31 May 2002 | -4.4°C9 May 1990 | 45 mm11 May 2005 | 160 mm1995 · driest 4 mm in 2001 | 50 |
| June | 37.8°C19 Jun 1989 | -1.1°C30 Jun 1968 | 47 mm13 Jun 1998 | 108 mm1998 · driest 0 mm in 2025 | 50 |
| July | 40.0°C20 Jul 1989 | 3.9°C11 Jul 1983 | 31 mm17 Jul 2013 | 60 mm2013 · driest 0 mm in 2016 | 48 |
| August | 40.6°C4 Aug 1979 | 0.0°C31 Aug 1965 | 36 mm14 Aug 1978 | 74 mm1983 · driest 0 mm in 2020 | 50 |
| September | 36.7°C6 Sep 2022 | -3.9°C29 Sep 1985 | 41 mm17 Sep 1978 | 168 mm1982 · driest 1 mm in 1979 | 48 |
| October | 31.7°C1 Oct 2010 | -13.3°C30 Oct 2019 | 45 mm31 Oct 1974 | 150 mm2004 · driest 0 mm in 2017 | 47 |
| November | 23.9°C15 Nov 2016 | -18.3°C26 Nov 1993 | 32 mm8 Nov 2020 | 92 mm1994 · driest 3 mm in 1976 | 49 |
| December | 18.9°C1 Dec 1995 | -21.7°C27 Dec 1988 | 44 mm21 Dec 2014 | 213 mm1983 · driest 2 mm in 1976 | 51 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 2 | 6 |
| February | 0 | 0 | 23 | 2 | 5 |
| March | <1 | 0 | 17 | 2 | 4 |
| April | 1 | 0 | 9 | 2 | 3 |
| May | 9 | 1 | 2 | 2 | <1 |
| June | 21 | 12 | <1 | <1 | 0 |
| July | 29 | 24 | 0 | <1 | 0 |
| August | 29 | 21 | 0 | <1 | 0 |
| September | 18 | 6 | <1 | 1 | 0 |
| October | 3 | <1 | 7 | 2 | <1 |
| November | 0 | 0 | 19 | 1 | 3 |
| December | 0 | 0 | 27 | 2 | 7 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 23% | 4% | 24% | 0.1–6.6°C |
| February | <1% | 24% | 4% | 25% | 4.3–8.9°C |
| March | 9% | 23% | 4% | 24% | 9.5–14.9°C |
| April | 32% | 23% | 6% | 24% | 14.2–19.4°C |
| May | 60% | 20% | 5% | 19% | 18.9–24.1°C |
| June | 87% | 12% | 2% | 9% | 25.2–31.1°C |
| July | 90% | 9% | 1% | 5% | 30.8–34.0°C |
| August | 84% | 14% | 2% | 9% | 29.1–33.0°C |
| September | 82% | 14% | 3% | 11% | 24.1–28.2°C |
| October | 44% | 16% | 5% | 13% | 16.1–21.2°C |
| November | 5% | 18% | 4% | 16% | 7.5–13.2°C |
| December | 0% | 22% | 5% | 24% | 1.8–6.8°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 5775863
- NOAA station
- USC00420061 · ALPINE
- Station distance
- 4.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 26 usable years
- Daylight
- Calculated from latitude 40.43°, 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.