Castella CDP, California

Official LSAD Designation: Castella CDP • Census GEOID: 0611824 • Shasta County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Castella CDP.

Reference Weather Station: DUNSMUIR TRTMT PL, CA US (ID: USC00042574) • Located 0.5 miles from community center • Elevation: 661.1 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	48.6°	29.9°	39.3°	11.08"
February	52.4°	30.8°	41.6°	10.46"
March	57.2°	33.4°	45.3°	9.20"
April	63.3°	37.1°	50.2°	4.90"
May	72.8°	44.1°	58.4°	2.83"
June	81.2°	50.2°	65.7°	1.33"
July	89.9°	54.0°	71.9°	0.15"
August	89.1°	51.5°	70.3°	0.20"
September	83.5°	46.2°	64.9°	0.68"
October	70.9°	39.3°	55.1°	3.04"
November	56.3°	33.6°	44.9°	6.89"
December	47.7°	30.1°	38.9°	12.57"

2010–2025, completed calendar years only.

NOAA station DUNSMUIR TRTMT PL, CA US (ID: USC00042574) • 0.5 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	52.7	66.6	38.9
2011	52.7	67.1	38.3
2012	53.7	68.1	39.3
2013	54.2	69.4	39.0
2014	55.8	70.3	41.3
2015	Unavailable	Unavailable	Unavailable
2016	54.3	67.7	40.9
2017	54.3	67.9	40.7
2018	54.5	68.8	40.2
2019	52.9	66.4	39.4
2020	55.0	70.0	39.9
2021	54.9	69.0	40.7
2022	54.2	69.6	38.8
2023	53.0	67.0	39.0
2024	Unavailable	Unavailable	Unavailable
2025	55.3	70.0	40.7

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.