Hercules climate

Hercules Weather in March

NOAA 1991-2020 normals for Richmond, 13.3 km from Hercules

Average highs run from 63°F on March 1 to 66°F on March 31, and lows from 47°F to 48°F. Normal precipitation for the month is 3.17 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 Hercules, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
64°F
Average low
47°F
Precipitation
3.17 in
Record high
89°FMar 20, 2026
Record low
33°FMar 2, 2023
Chance of a freeze
0%
Daylight
11 h 22 min to 12 h 35 min
Cloud cover
54%
Humidity
82%
Dew point
47°F
Wind
7.8 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 163°F47°F74°F 201635°F 202332%0%
Mar 263°F47°F73°F 201633°F 202332%0%
Mar 363°F47°F77°F 202037°F 200231%0%
Mar 463°F47°F79°F 202036°F 201831%0%
Mar 563°F47°F74°F 201235°F 201831%0%
Mar 663°F47°F75°F 201536°F 202231%0%
Mar 763°F47°F77°F 201535°F 202231%0%
Mar 863°F47°F78°F 200433°F 200230%0%
Mar 963°F47°F81°F 200435°F 200230%0%
Mar 1063°F47°F84°F 200434°F 200930%0%
Mar 1164°F47°F81°F 200535°F 200630%0%
Mar 1264°F47°F83°F 202637°F 201230%0%
Mar 1364°F47°F82°F 200435°F 200630%0%
Mar 1464°F47°F85°F 201536°F 200230%0%
Mar 1564°F47°F85°F 200438°F 200229%0%
Mar 1664°F47°F85°F 200437°F 202129%0%
Mar 1764°F47°F85°F 202637°F 200229%0%
Mar 1864°F48°F86°F 202636°F 200229%0%
Mar 1964°F48°F87°F 202635°F 201228%0%
Mar 2065°F48°F89°F 202641°F 200228%0%
Mar 2165°F48°F85°F 202639°F 202128%0%
Mar 2265°F48°F85°F 202238°F 201328%0%
Mar 2365°F48°F82°F 202635°F 200928%0%
Mar 2465°F48°F83°F 202639°F 200027%0%
Mar 2565°F48°F84°F 202538°F 202327%0%
Mar 2665°F48°F82°F 201536°F 202027%0%
Mar 2765°F48°F81°F 202637°F 202326%0%
Mar 2865°F48°F83°F 202636°F 200726%0%
Mar 2966°F48°F88°F 202640°F 200725%0%
Mar 3066°F48°F83°F 201138°F 200525%0%
Mar 3166°F48°F83°F 202138°F 200825%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Hercules, 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).

March 1
sunrise 6:41 AM, sunset 6:03 PM
March 31
sunrise 6:56 AM, sunset 7:31 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047414 (Richmond), public domain. Records: NOAA GHCN-Daily, station USW00023254, 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.