Santa Clara County climate

Santa Clara County Weather in April

NOAA 1991-2020 normals for Mt Hamilton, 13.2 km from Santa Clara County

Average highs run from 53°F on April 1 to 58°F on April 30, and lows from 39°F to 44°F. Normal precipitation for the month is 2.22 in over about 8 wet days.

April day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Santa Clara County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
55°F
Average low
41°F
Precipitation
2.22 in
Snowfall
1.8 in
Record high
95°FApr 9, 1989
Record low
26°FApr 5, 1895
Chance of a freeze
86%
Daylight
12 h 38 min to 13 h 43 min
Cloud cover
42%
Humidity
73%
Dew point
45°F
Wind
8.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Apr 153°F39°F83°F 195929°F 189631%7%
Apr 253°F39°F85°F 195931°F 189631%7%
Apr 353°F39°F88°F 196034°F 189431%7%
Apr 453°F39°F88°F 200033°F 191831%7%
Apr 553°F39°F89°F 198926°F 189530%7%
Apr 654°F39°F93°F 198931°F 189530%7%
Apr 754°F39°F93°F 198932°F 192930%7%
Apr 854°F40°F94°F 198936°F 189630%7%
Apr 954°F40°F95°F 198933°F 192230%6%
Apr 1054°F40°F92°F 190434°F 189530%6%
Apr 1154°F40°F91°F 190432°F 189529%6%
Apr 1254°F40°F89°F 194732°F 189329%6%
Apr 1355°F40°F91°F 194730°F 189329%6%
Apr 1455°F40°F90°F 194732°F 189328%6%
Apr 1555°F40°F89°F 196630°F 189628%5%
Apr 1655°F40°F93°F 199929°F 189428%5%
Apr 1755°F41°F92°F 199929°F 189427%5%
Apr 1856°F41°F86°F 191430°F 189327%5%
Apr 1956°F41°F90°F 195031°F 189626%5%
Apr 2056°F41°F92°F 193128°F 189626%4%
Apr 2156°F41°F91°F 198733°F 192026%4%
Apr 2256°F42°F89°F 199833°F 191225%4%
Apr 2357°F42°F90°F 191034°F 189425%4%
Apr 2457°F42°F92°F 196634°F 189425%4%
Apr 2557°F42°F92°F 192632°F 189324%3%
Apr 2657°F43°F93°F 200437°F 193224%3%
Apr 2758°F43°F92°F 200433°F 189624%3%
Apr 2858°F43°F91°F 198134°F 189423%3%
Apr 2958°F43°F93°F 198134°F 189723%2%
Apr 3058°F44°F95°F 199632°F 189623%2%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Santa Clara County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

April 1
sunrise 6:52 AM, sunset 7:30 PM
April 30
sunrise 6:13 AM, sunset 7:56 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00045933 (Mt Hamilton), public domain. Records: NOAA GHCN-Daily, station USC00047821, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.