April
April · October · March
91climate match
United States · 1991–2020
Best time to visit
Boulder Junction.
April leads for comfortable weather in Boulder Junction: typically 26°C by day, 13.4°C at night, with 5 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortApril
Typical high26°C
Typical low13.4°C
Rain in April5 mm
May
May · September · October
86climate match
November
November · March · February
95climate match
The weakest month is July, scoring 24 against April’s 91 — days average 40.4°C, 16° above 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
5014.8° / 4.2°
Feb
6217.3° / 6.2°
Mar
8321.8° / 9.8°
Apr
9126° / 13.4°
May
6931.5° / 18.5°
Jun
3937.5° / 23.9°
Jul
2440.4° / 27.3°
Aug
2839.4° / 26.5°
Sep
5135° / 22°
Oct
8927.4° / 14.9°
Nov
7319.6° / 8°
Dec
4613.9° / 3.7°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 14.8°C | 4.2°C | 14 mm | 2.2 | 9 h 57 | 50 | Strong coverage |
| February | 17.3°C | 6.2°C | 20 mm | 2.9 | 10 h 49 | 62 | Strong coverage |
| March | 21.8°C | 9.8°C | 11 mm | 1.9 | 11 h 51 | 83 | Strong coverage |
| April | 26°C | 13.4°C | 5 mm | 0.9 | 13 h 03 | 91 | Strong coverage |
| May | 31.5°C | 18.5°C | 2 mm | 0.5 | 14 h 03 | 69 | Strong coverage |
| June | 37.5°C | 23.9°C | 1 mm | 0.3 | 14 h 36 | 39 | Strong coverage |
| July | 40.4°C | 27.3°C | 10 mm | 1.6 | 14 h 23 | 24 | Strong coverage |
| August | 39.4°C | 26.5°C | 8 mm | 1.5 | 13 h 32 | 28 | Strong coverage |
| September | 35°C | 22°C | 8 mm | 1 | 12 h 22 | 51 | Strong coverage |
| October | 27.4°C | 14.9°C | 8 mm | 1.2 | 11 h 12 | 89 | Strong coverage |
| November | 19.6°C | 8°C | 8 mm | 1.1 | 10 h 12 | 73 | Strong coverage |
| December | 13.9°C | 3.7°C | 12 mm | 1.8 | 9 h 43 | 46 | Strong coverage |
What has changed
Boulder Junction runs +1.1°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
+1.4
Feb
+0.7
Mar
+1.4
Apr
+1.7
May
+0.4
Jun
+1.6
Jul
+0.7
Aug
+0.9
Sep
+1.1
Oct
+0.8
Nov
+1.2
Dec
+1.2
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 25.0°C26 Jan 1975 | -13.3°C13 Jan 1963 | 34 mm9 Jan 2018 | 76 mm1995 · driest 0 mm in 1984 | 78 |
| February | 30.6°C26 Feb 1986 | -8.9°C7 Feb 1989 | 33 mm8 Feb 1993 | 73 mm1998 · driest 0 mm in 1977 | 78 |
| March | 36.7°C25 Mar 2026 | -5.0°C1 Mar 1962 | 31 mm27 Mar 1992 | 122 mm1992 · driest 0 mm in 1972 | 78 |
| April | 37.2°C29 Apr 2020 | -0.6°C3 Apr 1955 | 25 mm12 Apr 1965 | 62 mm1965 · driest 0 mm in 2011 | 78 |
| May | 42.8°C28 May 2003 | 4.4°C4 May 1959 | 21 mm16 May 1987 | 37 mm2025 · driest 0 mm in 1959 | 78 |
| June | 47.2°C20 Jun 2017 | 8.9°C6 Jun 1993 | 21 mm10 Jun 1990 | 25 mm1990 · driest 0 mm in 1965 | 78 |
| July | 48.9°C7 Jul 2024 | 15.6°C19 Jul 1987 | 35 mm28 Jul 1984 | 63 mm1984 · driest 0 mm in 2000 | 78 |
| August | 46.7°C1 Aug 1979 | 13.3°C24 Aug 1968 | 66 mm21 Aug 1957 | 66 mm1957 · driest 0 mm in 2025 | 77 |
| September | 45.6°C6 Sep 2020 | 6.1°C27 Sep 1948 | 30 mm11 Sep 2012 | 52 mm1997 · driest 0 mm in 1973 | 78 |
| October | 40.0°C4 Oct 2024 | -3.3°C30 Oct 1971 | 27 mm24 Oct 1992 | 37 mm2005 · driest 0 mm in 2014 | 78 |
| November | 30.6°C1 Nov 1988 | -6.1°C28 Nov 1952 | 28 mm22 Nov 1965 | 56 mm1965 · driest 0 mm in 1962 | 78 |
| December | 25.0°C3 Dec 1980 | -11.7°C23 Dec 1990 | 29 mm29 Dec 2004 | 53 mm2004 · driest 0 mm in 2024 | 78 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 3 | <1 |
| February | 1 | 0 | 1 | <1 |
| March | 10 | 1 | <1 | <1 |
| April | 19 | 7 | 0 | <1 |
| May | 28 | 21 | 0 | 0 |
| June | 30 | 28 | 0 | 0 |
| July | 31 | 31 | 0 | <1 |
| August | 31 | 31 | 0 | <1 |
| September | 30 | 27 | 0 | <1 |
| October | 22 | 11 | 0 | <1 |
| November | 5 | <1 | <1 | <1 |
| December | 0 | 0 | 5 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 7% | 7% | 1% | 5% | 12.0–16.4°C |
| February | 29% | 8% | 2% | 6% | 14.5–19.9°C |
| March | 58% | 6% | <1% | 3% | 18.2–24.4°C |
| April | 85% | 3% | <1% | 1% | 22.6–28.5°C |
| May | 97% | 2% | <1% | <1% | 28.0–33.6°C |
| June | 99% | 1% | <1% | <1% | 35.1–39.6°C |
| July | 95% | 6% | <1% | 2% | 38.5–41.7°C |
| August | 95% | 5% | <1% | 1% | 37.7–40.6°C |
| September | 97% | 4% | <1% | <1% | 32.9–36.7°C |
| October | 90% | 4% | <1% | 1% | 25.0–30.4°C |
| November | 46% | 4% | 1% | 1% | 16.5–21.7°C |
| December | 7% | 5% | <1% | 2% | 11.5–16.6°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 5500550
- NOAA station
- USW00023169 · MCCARRAN INTL AP
- Station distance
- 3.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 36.08°, 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.