Cotati climate

Cotati Weather in April

NOAA 1991-2020 normals for Petaluma AP, 11.6 km from Cotati

Average highs run from 66°F on April 1 to 70°F on April 30, and lows from 43°F to 45°F. Normal precipitation for the month is 1.68 in over about 6 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 Cotati, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
68°F
Average low
44°F
Precipitation
1.68 in
Record high
97°FApr 29, 1981
Record low
24°FApr 24, 1971
Chance of a freeze
15%
Daylight
12 h 38 min to 13 h 47 min
Cloud cover
48%
Humidity
77%
Dew point
46°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Apr 166°F43°F89°F 200029°F 193628%
Apr 266°F43°F85°F 198531°F 197628%
Apr 366°F43°F84°F 196132°F 191827%
Apr 466°F43°F89°F 198528°F 191827%
Apr 566°F43°F88°F 192427°F 199827%
Apr 667°F43°F90°F 198929°F 199826%
Apr 767°F43°F92°F 198930°F 192926%
Apr 867°F43°F92°F 198929°F 192925%
Apr 967°F43°F91°F 198926°F 193725%
Apr 1067°F43°F90°F 198832°F 192925%
Apr 1167°F43°F88°F 198830°F 192924%
Apr 1267°F43°F89°F 193632°F 194824%
Apr 1368°F44°F89°F 194734°F 200523%
Apr 1468°F44°F90°F 198532°F 191923%
Apr 1568°F44°F88°F 196631°F 195522%
Apr 1668°F44°F88°F 196630°F 191722%
Apr 1768°F44°F85°F 195429°F 191721%
Apr 1868°F44°F85°F 191831°F 191721%
Apr 1968°F44°F87°F 195030°F 191720%
Apr 2068°F44°F93°F 193130°F 199820%
Apr 2169°F44°F87°F 198730°F 200820%
Apr 2269°F44°F87°F 198134°F 191619%
Apr 2369°F44°F89°F 196632°F 198319%
Apr 2469°F45°F88°F 201924°F 197118%
Apr 2569°F45°F92°F 192635°F 191918%
Apr 2669°F45°F93°F 200434°F 193218%
Apr 2769°F45°F91°F 192132°F 195517%
Apr 2869°F45°F93°F 198132°F 197217%
Apr 2970°F45°F97°F 198134°F 191716%
Apr 3070°F45°F89°F 191635°F 191316%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (PDT).

April 1
sunrise 6:56 AM, sunset 7:34 PM
April 30
sunrise 6:15 AM, sunset 8:02 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046826 (Petaluma AP), public domain. Records: NOAA GHCN-Daily, station USC00046826, 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.