September
September · June · August
87climate match
United States · 1991–2020
Best time to visit
Hathaway.
September leads for comfortable weather in Hathaway: typically 24.4°C by day, 8.7°C at night, with 27 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high24.4°C
Typical low8.7°C
Rain in September27 mm
August
August · July · June
75climate match
September
September · May · October
83climate match
The weakest month is January, scoring 5 against September’s 87 — days reach only -0.9°C, 25° below the 24°C the score treats as ideal, and nights drop to -12.4°C.
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
5-0.9° / -12.4°
Feb
51.6° / -10.4°
Mar
128.4° / -4.8°
Apr
4114.7° / 1°
May
6220.2° / 6.5°
Jun
7926.1° / 11.9°
Jul
7031.7° / 15.8°
Aug
7531° / 14.7°
Sep
8724.4° / 8.7°
Oct
4515.2° / 1.4°
Nov
66.9° / -5.6°
Dec
50.7° / -10.8°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -0.9°C | -12.4°C | 7 mm | 2.2 | 8 h 59 | 5 | Strong coverage |
| February | 1.6°C | -10.4°C | 7 mm | 2.5 | 10 h 15 | 5 | Strong coverage |
| March | 8.4°C | -4.8°C | 14 mm | 3.5 | 11 h 45 | 12 | Strong coverage |
| April | 14.7°C | 1°C | 39 mm | 5.5 | 13 h 29 | 41 | Strong coverage |
| May | 20.2°C | 6.5°C | 69 mm | 8.9 | 14 h 57 | 62 | Strong coverage |
| June | 26.1°C | 11.9°C | 64 mm | 8.3 | 15 h 46 | 79 | Strong coverage |
| July | 31.7°C | 15.8°C | 38 mm | 5.9 | 15 h 27 | 70 | Strong coverage |
| August | 31°C | 14.7°C | 23 mm | 4.2 | 14 h 10 | 75 | Strong coverage |
| September | 24.4°C | 8.7°C | 27 mm | 3.9 | 12 h 29 | 87 | Strong coverage |
| October | 15.2°C | 1.4°C | 25 mm | 4.7 | 10 h 49 | 45 | Strong coverage |
| November | 6.9°C | -5.6°C | 8 mm | 2.6 | 9 h 21 | 6 | Strong coverage |
| December | 0.7°C | -10.8°C | 5 mm | 1.6 | 8 h 37 | 5 | Strong coverage |
What has changed
Hathaway runs +0.9°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
+2.9
Feb
-1.1
Mar
+1.4
Apr
-0.4
May
-0.5
Jun
+0.4
Jul
+0.9
Aug
+0.6
Sep
+2.7
Oct
-0.3
Nov
+1.4
Dec
+2.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 22.2°C31 Jan 1992 | -38.3°C30 Jan 1996 | 19 mm3 Jan 1996 | 45 mm1971 · driest 0 mm in 2008 | 90 |
| February | 22.8°C27 Feb 1992 | -38.3°C11 Feb 1939 | 20 mm18 Feb 1952 | 33 mm1959 · driest 0 mm in 2005 | 90 |
| March | 28.3°C29 Mar 1943 | -34.9°C3 Mar 2019 | 31 mm30 Mar 2006 | 47 mm1950 · driest 0 mm in 2008 | 90 |
| April | 33.3°C21 Apr 1980 | -16.6°C3 Apr 2020 | 74 mm24 Apr 2016 | 111 mm2016 · driest 1 mm in 1983 | 90 |
| May | 37.8°C29 May 1988 | -9.4°C3 May 1954 | 58 mm17 May 1978 | 238 mm2011 · driest 6 mm in 1958 | 90 |
| June | 43.9°C26 Jun 2012 | 0.0°C1 Jun 1951 | 69 mm18 Jun 1964 | 248 mm1944 · driest 9 mm in 2012 | 90 |
| July | 46.1°C12 Jul 2026 | 5.0°C1 Jul 1945 | 56 mm29 Jul 1985 | 161 mm1993 · driest 0 mm in 1988 | 90 |
| August | 43.3°C7 Aug 1949 | 1.7°C22 Aug 1966 | 42 mm23 Aug 1968 | 102 mm1951 · driest 0 mm in 1967 | 89 |
| September | 41.1°C1 Sep 1983 | -7.2°C21 Sep 1995 | 68 mm7 Sep 1941 | 119 mm1941 · driest 0 mm in 1960 | 89 |
| October | 35.0°C1 Oct 2011 | -22.2°C30 Oct 1991 | 54 mm1 Oct 1971 | 161 mm1971 · driest 0 mm in 1963 | 89 |
| November | 27.2°C12 Nov 1999 | -31.7°C28 Nov 1985 | 30 mm1 Nov 1957 | 55 mm1978 · driest 0 mm in 2016 | 89 |
| December | 21.1°C1 Dec 2021 | -38.9°C24 Dec 1983 | 12 mm6 Dec 1971 | 45 mm1968 · driest 1 mm in 1957 | 88 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | 0 | 6 |
| February | 0 | 0 | 27 | 0 | 5 |
| March | <1 | 0 | 25 | <1 | 4 |
| April | 2 | <1 | 13 | 1 | 2 |
| May | 8 | 2 | 3 | 2 | <1 |
| June | 19 | 8 | 0 | 2 | 0 |
| July | 29 | 20 | 0 | 1 | 0 |
| August | 27 | 20 | 0 | <1 | 0 |
| September | 15 | 7 | <1 | <1 | <1 |
| October | 3 | <1 | 11 | <1 | 1 |
| November | <1 | 0 | 26 | <1 | 5 |
| December | 0 | 0 | 30 | 0 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 10% | <1% | 6% | -8.4–3.0°C |
| February | <1% | 10% | <1% | 6% | -4.8–6.6°C |
| March | 6% | 12% | <1% | 7% | 2.1–12.3°C |
| April | 23% | 19% | 3% | 17% | 11.5–18.2°C |
| May | 48% | 26% | 6% | 32% | 17.9–23.5°C |
| June | 66% | 28% | 7% | 31% | 23.3–28.9°C |
| July | 82% | 18% | 3% | 15% | 29.5–34.2°C |
| August | 84% | 15% | 3% | 10% | 28.3–33.2°C |
| September | 68% | 14% | 3% | 11% | 20.9–27.4°C |
| October | 32% | 13% | 2% | 7% | 12.6–19.0°C |
| November | 3% | 10% | <1% | 6% | 2.5–10.5°C |
| December | <1% | 9% | <1% | 6% | -5.6–4.7°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
Nearby, measured,
and named.
- Place identity
- GeoNames 5656445
- NOAA station
- USW00024037 · MILES CITY AP
- Station distance
- 29.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 46.28°, 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.