July
July · August · September
90climate match
United States · 1991–2020
Best time to visit
Carson.
July leads for comfortable weather in Carson: typically 26.6°C by day, 14.1°C at night, with 15 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high26.6°C
Typical low14.1°C
Rain in July15 mm
August
August · July · September
75climate match
September
September · May · June
75climate match
The weakest month is January, scoring 5 against July’s 90 — days reach only 6.5°C, 17° below the 24°C the score treats as ideal, and 291 mm of rain falls.
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
56.5° / 1.4°
Feb
58.9° / 2°
Mar
512.4° / 3.4°
Apr
2615.7° / 5.7°
May
5719.8° / 8.8°
Jun
7622.5° / 11.4°
Jul
9026.6° / 14.1°
Aug
8927° / 14.2°
Sep
8724° / 11.8°
Oct
3617.4° / 8.2°
Nov
510.6° / 4.5°
Dec
56.4° / 1.6°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 6.5°C | 1.4°C | 291 mm | 18.3 | 9 h 03 | 5 | Strong coverage |
| February | 8.9°C | 2°C | 220 mm | 15.9 | 10 h 17 | 5 | Strong coverage |
| March | 12.4°C | 3.4°C | 226 mm | 18 | 11 h 46 | 5 | Strong coverage |
| April | 15.7°C | 5.7°C | 164 mm | 16.7 | 13 h 27 | 26 | Strong coverage |
| May | 19.8°C | 8.8°C | 107 mm | 11.7 | 14 h 54 | 57 | Strong coverage |
| June | 22.5°C | 11.4°C | 82 mm | 9.3 | 15 h 41 | 76 | Strong coverage |
| July | 26.6°C | 14.1°C | 15 mm | 2.9 | 15 h 22 | 90 | Strong coverage |
| August | 27°C | 14.2°C | 23 mm | 2.9 | 14 h 07 | 89 | Strong coverage |
| September | 24°C | 11.8°C | 66 mm | 6.3 | 12 h 29 | 87 | Strong coverage |
| October | 17.4°C | 8.2°C | 186 mm | 12.8 | 10 h 51 | 36 | Strong coverage |
| November | 10.6°C | 4.5°C | 317 mm | 18.4 | 9 h 25 | 5 | Strong coverage |
| December | 6.4°C | 1.6°C | 339 mm | 19.1 | 8 h 42 | 5 | Strong coverage |
What has changed
Carson runs +0.4°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
+0.1
Feb
-0.6
Mar
-0.3
Apr
+0.5
May
+0.7
Jun
+0.7
Jul
+1.3
Aug
+1.6
Sep
+0.9
Oct
+0.1
Nov
-0.2
Dec
+0.1
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.8°C10 Jan 1990 | -16.7°C28 Jan 1957 | 105 mm15 Jan 1956 | 781 mm1953 · driest 8 mm in 1985 | 89 |
| February | 20.0°C23 Feb 2002 | -13.9°C2 Feb 1996 | 95 mm7 Feb 1996 | 552 mm1961 · driest 31 mm in 1993 | 89 |
| March | 25.0°C28 Mar 2025 | -6.7°C1 Mar 1971 | 102 mm7 Mar 1957 | 488 mm2011 · driest 54 mm in 1965 | 88 |
| April | 31.1°C28 Apr 1987 | -2.2°C13 Apr 1968 | 123 mm10 Apr 1981 | 317 mm1993 · driest 25 mm in 1956 | 89 |
| May | 36.7°C23 May 2001 | -0.6°C20 May 1966 | 60 mm1 May 2001 | 242 mm1960 · driest 14 mm in 2018 | 89 |
| June | 43.9°C29 Jun 2021 | 2.8°C2 Jun 1967 | 70 mm8 Jun 1981 | 223 mm1981 · driest 4 mm in 1940 | 89 |
| July | 41.7°C15 Jul 1941 | 6.1°C5 Jul 1955 | 41 mm14 Jul 1983 | 150 mm1983 · driest 0 mm in 1956 | 89 |
| August | 41.7°C18 Aug 1977 | 5.6°C8 Aug 1965 | 53 mm26 Aug 1956 | 169 mm1968 · driest 0 mm in 1998 | 88 |
| September | 37.8°C6 Sep 1955 | 1.1°C27 Sep 1972 | 63 mm30 Sep 1951 | 223 mm2013 · driest 0 mm in 1942 | 88 |
| October | 30.0°C2 Oct 1987 | -1.7°C28 Oct 1971 | 120 mm11 Oct 1959 | 465 mm2016 · driest 3 mm in 1987 | 88 |
| November | 21.7°C4 Nov 1975 | -12.8°C24 Nov 1985 | 129 mm7 Nov 2006 | 736 mm2006 · driest 62 mm in 1952 | 89 |
| December | 18.3°C26 Dec 1980 | -17.8°C31 Dec 1968 | 158 mm27 Dec 1937 | 710 mm1996 · driest 56 mm in 1985 | 89 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 9 | 10 | 1 |
| February | 0 | 0 | 7 | 8 | 1 |
| March | 0 | 0 | 3 | 8 | <1 |
| April | 1 | <1 | <1 | 7 | 0 |
| May | 6 | 1 | 0 | 4 | 0 |
| June | 9 | 3 | 0 | 3 | 0 |
| July | 20 | 8 | 0 | <1 | 0 |
| August | 21 | 8 | 0 | <1 | 0 |
| September | 13 | 4 | 0 | 2 | 0 |
| October | 1 | 0 | <1 | 6 | 0 |
| November | 0 | 0 | 3 | 10 | <1 |
| December | 0 | 0 | 9 | 11 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 59% | 31% | 75% | 2.2–8.5°C |
| February | 0% | 58% | 28% | 76% | 6.0–10.8°C |
| March | 4% | 57% | 25% | 75% | 9.6–14.1°C |
| April | 16% | 49% | 18% | 65% | 13.3–18.0°C |
| May | 38% | 36% | 11% | 44% | 16.9–21.2°C |
| June | 58% | 27% | 8% | 32% | 20.0–24.8°C |
| July | 87% | 9% | 2% | 7% | 24.1–28.6°C |
| August | 85% | 12% | 3% | 12% | 24.0–28.5°C |
| September | 68% | 23% | 8% | 29% | 21.0–25.8°C |
| October | 23% | 40% | 19% | 57% | 15.3–19.2°C |
| November | <1% | 61% | 33% | 79% | 8.5–12.4°C |
| December | 0% | 61% | 35% | 79% | 4.7–8.3°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 5789244
- NOAA station
- USC00350897 · BONNEVILLE DAM
- Station distance
- 14.4 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 45.73°, 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.