Sunnyvale climate

Sunnyvale Weather in March

NOAA 1991-2020 normals for Lavon Dam, 27.4 km from Sunnyvale

Average highs run from 61°F on March 1 to 70°F on March 31, and lows from 42°F to 50°F. Normal precipitation for the month is 3.54 in over about 9 wet days.

March day by day

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

Normal daily high and low temperature at Sunnyvale, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
65°F
Average low
46°F
Precipitation
3.54 in
Record high
94°FMar 31, 1974
Record low
14°FMar 2, 1980
Chance of a freeze
73%
Daylight
11 h 30 min to 12 h 31 min
Cloud cover
59%
Humidity
76%
Dew point
47°F
Wind
11.4 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
Mar 161°F42°F86°F 200621°F 198027%0%
Mar 261°F42°F84°F 197414°F 198027%0%
Mar 362°F43°F85°F 202616°F 201427%0%
Mar 462°F43°F86°F 197618°F 200227%0%
Mar 562°F43°F93°F 199119°F 198927%0%
Mar 662°F44°F85°F 200919°F 198927%0%
Mar 763°F44°F89°F 197224°F 200827%0%
Mar 863°F44°F87°F 197223°F 196728%0%
Mar 963°F45°F84°F 199321°F 199628%0%
Mar 1063°F45°F85°F 200625°F 199828%0%
Mar 1164°F45°F90°F 196723°F 202228%0%
Mar 1264°F46°F89°F 196726°F 199828%0%
Mar 1364°F46°F91°F 197126°F 198828%0%
Mar 1464°F46°F88°F 197125°F 197528%0%
Mar 1565°F46°F88°F 202626°F 199328%0%
Mar 1665°F47°F85°F 201829°F 202628%0%
Mar 1765°F47°F85°F 197230°F 200528%0%
Mar 1866°F47°F86°F 198228°F 198028%0%
Mar 1966°F47°F84°F 198226°F 196528%0%
Mar 2066°F48°F89°F 202619°F 196527%0%
Mar 2167°F48°F90°F 202628°F 199627%0%
Mar 2267°F48°F92°F 202629°F 197427%0%
Mar 2367°F48°F88°F 199528°F 196827%0%
Mar 2467°F49°F87°F 202029°F 197427%0%
Mar 2568°F49°F90°F 202531°F 199627%0%
Mar 2668°F49°F92°F 202228°F 196527%0%
Mar 2768°F49°F90°F 201133°F 196527%0%
Mar 2869°F50°F90°F 197129°F 198727%0%
Mar 2969°F50°F87°F 196730°F 198727%0%
Mar 3069°F50°F89°F 197429°F 198727%0%
Mar 3170°F50°F94°F 197428°F 198727%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sunnyvale, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

March 1
sunrise 6:54 AM, sunset 6:24 PM
March 31
sunrise 7:15 AM, sunset 7:46 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00415094 (Lavon Dam), public domain. Records: NOAA GHCN-Daily, station USC00413133, 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.