Henshaw Dam, CA Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Henshaw Dam's primary NOAA station, HENSHAW DAM.
The climate verdict for Henshaw Dam
A compact 29°F seasonal swing gives Henshaw Dam, California a steadier-than-extreme annual shape. NOAA reports an annual average of 58°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 58°F
- yearly average temperature, NOAA normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 25.2"
- yearly precipitation total
- 191 days
- frost-free growing season
Henshaw Dam: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00043914 · Henshaw Dam, CA 58°F mean · 25.2" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-NARROW · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 58°F
- RANK-UPPER #4,665
- PHOTO-FINISH ≈ Priest Valley
- PRCP-MID 25.2"
- SWING-NARROW 29°F
- COMF-TOP 80/100
- LOAD-HEAT 3,477 HDD
- STN-1 USC00043914
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Priest Valley, CA ( -0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every CA station list.
- Henshaw Dam (this station) 58°F
- Hot Julian Cdf, CA 58°F
- Near Orleans, CA 58°F
- Cold Skyline Ridge P…, CA 57°F
- Near Priest Valley, CA 57°F
Climate Living Index · Henshaw Dam
Henshaw Dam: 59/100 · grade C
Henshaw Dam publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Henshaw Dam, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 57.5°F · 10.0° from 67.5°F | 68/100 · C |
| Precipitation balance | 25.2 in · 9.8 from 35 in | 66/100 · C |
| Frost-free season | 191 days/year | 58/100 · C |
| Normal heat + freeze calendar | 152 calendar days | 45/100 · D |
Henshaw Dam · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Henshaw Dam is a temperate Köppen climate: Csa
Coldest-month mean 44.7°F and warmest-month mean 73.7°F place this station in temperate, dry-summer, hot summer climates (Csa). Class Csa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, hot summer.
- Köppen code
- Csa
- Group
- Temperate
- Warmest month
- 73.7°F
- Coldest month
- 44.7°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Henshaw Dam sits across the climate record
Three NOAA fields for Henshaw Dam's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 68th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 34th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 92%
- Warmest-to-coldest month gap for Henshaw Dam is compact versus 6,861 complete station-years.
How Henshaw Dam compares across U.S. station-mapped locations
Henshaw Dam's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Henshaw Dam's measured station temperature trend
MethodologyAcross 51 complete annual observations from 1943 to 2024, HENSHAW DAM warmed at a fitted rate of 0.36°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Henshaw Dam primary station fitted change +0.36 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 61°F (16°C) | 31°F (-1°C) | 46°F (8°C) | 5.3" | 22.2 | 0.0 |
| February | 61°F (16°C) | 32°F (0°C) | 47°F (8°C) | 5.9" | 17.0 | 0.0 |
| March | 65°F (18°C) | 35°F (2°C) | 50°F (10°C) | 4.1" | 12.6 | 0.1 |
| April | 69°F (21°C) | 38°F (3°C) | 53°F (12°C) | 1.7" | 6.9 | 0.4 |
| May | 75°F (24°C) | 43°F (6°C) | 59°F (15°C) | 0.7" | 1.5 | 2.7 |
| June | 85°F (29°C) | 46°F (8°C) | 66°F (19°C) | 0.1" | 0.2 | 11.6 |
| July | 92°F (33°C) | 53°F (12°C) | 73°F (23°C) | 0.2" | 0.0 | 23.1 |
| August | 94°F (34°C) | 54°F (12°C) | 74°F (23°C) | 0.3" | 0.1 | 25.3 |
| September | 89°F (32°C) | 49°F (9°C) | 69°F (20°C) | 0.4" | 0.9 | 18.9 |
| October | 79°F (26°C) | 40°F (5°C) | 59°F (15°C) | 0.9" | 5.1 | 5.5 |
| November | 69°F (20°C) | 34°F (1°C) | 51°F (11°C) | 1.9" | 15.3 | 0.1 |
| December | 60°F (15°C) | 30°F (-1°C) | 45°F (7°C) | 3.8" | 23.3 | 0.0 |
The year, day by day
Henshaw Dam works both ends of the calendar. Normal highs climb to 94°F by August 13 and hold at or above 90°F on 72 dates, then normal lows drop to freezing or below on 80 dates, bottoming at 29°F around December 14.
When the heat sits
Normal highs reach 90°F from July 3 through September 12, covering 72 dates. The broader mild season, normal highs of 70°F or more, runs April 22 to November 12.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into February 12, then returns to freezing around November 25, covering 80 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is February 21, when 31% of years recorded at least a hundredth of an inch. The driest is June 21 at 2%. Summed across the calendar, that is about 51 wet dates a year.
The widest day
August 29 carries the biggest normal gap between afternoon and dawn, 41°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Henshaw Dam.
Where Henshaw Dam Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 41°F, sharper than nine in ten ranked stations see.
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 72 days a year, more than four out of five ranked stations record.
Henshaw Dam earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
7.5 days with precipitation
8.7 days with precipitation
7.3 days with precipitation
5.3 days with precipitation
2.9 days with precipitation
0.5 days with precipitation
1.1 days with precipitation
1.1 days with precipitation
1.6 days with precipitation
3.0 days with precipitation
4.4 days with precipitation
7.0 days with precipitation
Henshaw Dam's wet season runs through the cold months
December, January and February carry 59% of the year's precipitation here, while June through August contribute 2%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows an unusually narrow 29°F seasonal spread.
- Wettest month
- February, 5.9"
- Driest month
- June, 0.1"
- Wettest three months
- February, January, March (60% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
When it rains in Henshaw Dam, it arrives in quantity
25.2" of precipitation falls across only about 50 wet days here, averaging 0.50 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 50 a year, 14% of all days
- Average depth per wet day
- 0.50 inches
- Most wet days
- February, about 9
- Fewest wet days
- June, about 1
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
October 26
50% probability date
Last Spring Freeze
April 18
50% probability date
Growing Season
191 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,477
Higher = more heating needed
Cooling Degree Days
780
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Henshaw Dam on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (58°F here).
- Abilene, KS 58°F · 0.0°F off
- Ashland, VA 58°F · 0.0°F off
- Bowling Green, KY 58°F · 0.0°F off
- Branson, MO 58°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (25.2" here), excluding temperature-peer places.
- Fort Supply, OK 25.2" · 0.0" off
- Brookings, SD 25.2" · 0.0" off
- Port Mansfield, TX 25.3" · 0.0" off
- Wilmore, KS 25.2" · 0.0" off
Data-derived climate profile
How Henshaw Dam's climate pattern fits together
heating led · moderate · low swing
Heating is the larger measured load in Henshaw Dam, at 3,477 degree days versus 780 for cooling. Unlike a strongly continental record, however, its 29.0°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Henshaw Dam's frost-free season lasts about 191 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Temperature varies within a narrow 29.0°F band across the normal year. August and December mark the typical warm and cold ends of the calendar. The annual average is 58°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
Henshaw Dam's 25.2 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Henshaw Dam's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Henshaw Dam, not an official NOAA class or a year-ahead forecast.
Questions about Henshaw Dam's climate
How much rain does Henshaw Dam get? ▼
How many days above 90°F does Henshaw Dam get? ▼
How much energy does heating and cooling require in Henshaw Dam? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Henshaw Dam's primary station: HENSHAW DAM (USC00043914). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Henshaw Dam; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Henshaw Dam comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.