May
May · September · June
83climate match
United States · 1991–2020
Best time to visit
Divide (historical).
May leads for comfortable weather in Divide (historical): typically 23.4°C by day, 6.5°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortMay
Typical high23.4°C
Typical low6.5°C
Rain in May13 mm
June
June · July · August
71climate match
October
October · May · April
88climate match
The weakest month is December, scoring 5 against May’s 83 — days reach only 7.1°C, 17° below the 24°C the score treats as ideal, and nights drop to -6.7°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
97.8° / -5.8°
Feb
189.7° / -4.1°
Mar
3914.3° / -1.3°
Apr
5618° / 1.7°
May
8323.4° / 6.5°
Jun
7529.7° / 11.4°
Jul
6833.6° / 14.8°
Aug
6932.6° / 13.6°
Sep
7827.7° / 9.6°
Oct
6720.3° / 3.3°
Nov
3112.6° / -2.8°
Dec
57.1° / -6.7°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 7.8°C | -5.8°C | 11 mm | 2.5 | 9 h 48 | 9 | Strong coverage |
| February | 9.7°C | -4.1°C | 12 mm | 2.6 | 10 h 43 | 18 | Strong coverage |
| March | 14.3°C | -1.3°C | 12 mm | 2.5 | 11 h 50 | 39 | Strong coverage |
| April | 18°C | 1.7°C | 7 mm | 2.1 | 13 h 08 | 56 | Strong coverage |
| May | 23.4°C | 6.5°C | 13 mm | 2.5 | 14 h 12 | 83 | Strong coverage |
| June | 29.7°C | 11.4°C | 6 mm | 1.2 | 14 h 47 | 75 | Strong coverage |
| July | 33.6°C | 14.8°C | 12 mm | 2.4 | 14 h 33 | 68 | Strong coverage |
| August | 32.6°C | 13.6°C | 10 mm | 1.8 | 13 h 38 | 69 | Strong coverage |
| September | 27.7°C | 9.6°C | 10 mm | 1.5 | 12 h 23 | 78 | Strong coverage |
| October | 20.3°C | 3.3°C | 10 mm | 1.5 | 11 h 09 | 67 | Strong coverage |
| November | 12.6°C | -2.8°C | 7 mm | 1.5 | 10 h 04 | 31 | Strong coverage |
| December | 7.1°C | -6.7°C | 7 mm | 1.7 | 9 h 32 | 5 | Strong coverage |
What has changed
Divide (historical) runs +1.3°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
+1.7
Feb
+0.5
Mar
+1.4
Apr
+1.9
May
+0.3
Jun
+2.0
Jul
+1.3
Aug
+1.5
Sep
+1.6
Oct
+0.5
Nov
+1.4
Dec
+1.0
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 19.4°C18 Jan 1971 | -26.1°C24 Jan 1962 | 17 mm25 Jan 1995 | 57 mm1995 · driest 0 mm in 1994 | 72 |
| February | 23.9°C25 Feb 1986 | -22.8°C7 Feb 1989 | 39 mm10 Feb 1968 | 68 mm1968 · driest 0 mm in 1967 | 72 |
| March | 28.9°C20 Mar 2026 | -15.6°C2 Mar 1971 | 23 mm3 Mar 1983 | 61 mm1978 · driest 0 mm in 1966 | 72 |
| April | 31.1°C30 Apr 1981 | -12.8°C2 Apr 1958 | 25 mm10 Apr 1975 | 54 mm1988 · driest 0 mm in 1979 | 72 |
| May | 35.6°C28 May 2003 | -7.2°C3 May 1964 | 24 mm28 May 1990 | 52 mm2019 · driest 0 mm in 1983 | 72 |
| June | 39.4°C30 Jun 2013 | -2.8°C1 Jun 1971 | 24 mm2 Jun 1999 | 43 mm1998 · driest 0 mm in 2023 | 73 |
| July | 40.6°C11 Jul 2021 | 4.4°C1 Jul 1997 | 33 mm18 Jul 1985 | 63 mm1985 · driest 0 mm in 2000 | 73 |
| August | 39.4°C17 Aug 2020 | 2.8°C24 Aug 1963 | 65 mm20 Aug 2023 | 88 mm2023 · driest 0 mm in 1954 | 72 |
| September | 38.3°C6 Sep 2022 | -4.4°C30 Sep 1982 | 38 mm5 Sep 2025 | 52 mm1978 · driest 0 mm in 1974 | 72 |
| October | 32.2°C1 Oct 1980 | -12.1°C30 Oct 2019 | 40 mm4 Oct 2015 | 75 mm2015 · driest 0 mm in 1995 | 72 |
| November | 25.0°C3 Nov 1988 | -16.0°C30 Nov 2019 | 30 mm27 Nov 1981 | 68 mm1981 · driest 0 mm in 1977 | 72 |
| December | 21.1°C1 Dec 1959 | -25.0°C21 Dec 1967 | 25 mm24 Dec 2025 | 28 mm2025 · driest 0 mm in 1999 | 72 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 3 |
| February | 0 | 0 | 25 | <1 | 3 |
| March | <1 | 0 | 21 | <1 | 2 |
| April | 3 | <1 | 11 | <1 | 2 |
| May | 15 | 3 | 2 | <1 | <1 |
| June | 25 | 18 | <1 | <1 | 0 |
| July | 31 | 28 | 0 | <1 | 0 |
| August | 31 | 27 | 0 | <1 | 0 |
| September | 24 | 10 | <1 | <1 | 0 |
| October | 6 | <1 | 6 | <1 | <1 |
| November | 0 | 0 | 24 | <1 | <1 |
| December | 0 | 0 | 30 | 0 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 80); on 2011–2025 it is May (82). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 8% | <1% | 3% | 3.9–10.1°C |
| February | 1% | 8% | <1% | 6% | 6.6–12.4°C |
| March | 13% | 8% | <1% | 4% | 10.1–16.9°C |
| April | 41% | 7% | <1% | 4% | 14.8–20.9°C |
| May | 72% | 8% | 1% | 5% | 19.7–25.7°C |
| June | 93% | 5% | <1% | 2% | 26.3–32.0°C |
| July | 93% | 7% | 1% | 5% | 31.4–35.0°C |
| August | 93% | 7% | 1% | 4% | 30.0–33.5°C |
| September | 89% | 6% | 1% | 4% | 24.6–29.2°C |
| October | 58% | 5% | <1% | 2% | 17.4–22.9°C |
| November | 9% | 6% | <1% | 2% | 9.8–14.9°C |
| December | 0% | 6% | <1% | 3% | 4.3–10.4°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 5503028
- NOAA station
- USW00023153 · TONOPAH AP
- Station distance
- 15.6 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 38.00°, 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.