Mount Shasta, CA

California · Records since 1948–2026

☀️ 40°F Feels like 34°
Currently in Mount Shasta
As of 5:00 PM PDT

Records for July 28

🔥 Record High

105°F

July 28, 2022

+18° from 87° normal

❄ Record Low

38°F

July 28, 1965

-14° from 52° normal
🌞 Normal high: 87°F 🌑 Normal low: 52°F 1991–2020 normals

All-Time Records — Mount Shasta

🔥
106°F
Hottest Day Ever
Jul 29, 2022
-13°F
Coldest Day Ever
Dec 22, 1990
🌧
5.97"
Wettest Day Ever
Jan 9, 1995
37.4"
Most Snow in One Day
Dec 6, 1952

Top 10 Record Highs — July 28

# Temp Date
🏆 105°F July 28, 2022
2 102°F July 28, 2016
3 98°F July 28, 2014
4 98°F July 28, 2009
5 98°F July 28, 1968
6 96°F July 28, 2018
7 96°F July 28, 1960
8 95°F July 28, 2019
9 95°F July 28, 1991
10 95°F July 28, 1973

Top 5 Record Lows — July 28

# Temp Date
🥶 38°F July 28, 1965
2 44°F July 28, 1986
3 44°F July 28, 1950
4 45°F July 28, 2024
5 45°F July 28, 1948
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1948–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Mount Shasta

threshold: 93°F (90th percentile of historical Jun–Aug highs)
4.8
Avg heat wave length
days (historical)
98°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

151 of 207 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1948–2026
13
2026 so far
25
Avg/year 1970–2025
43
Avg/year (last 10 complete)
65
Most in a year (2021)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Mount Shasta

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 25, 2021 – Jul 14, 2021 20 103°F (Jun 27) 97°F 56°F
2 Jul 4, 2024 – Jul 13, 2024 10 104°F (Jul 6) 101°F 57°F
3 Jul 11, 2018 – Jul 20, 2018 10 97°F (Jul 12) 95°F 56°F
4 Jul 23, 2022 – Jul 31, 2022 9 106°F (Jul 29) 100°F 57°F
5 Jul 24, 2016 – Aug 1, 2016 9 102°F (Jul 28) 97°F 56°F
6 Jul 27, 2017 – Aug 4, 2017 9 101°F (Aug 2) 97°F 57°F
7 Aug 1, 1978 – Aug 9, 1978 9 100°F (Aug 7) 97°F 57°F
8 Jul 18, 2024 – Jul 25, 2024 8 100°F (Jul 20) 97°F 58°F
9 Jul 12, 2014 – Jul 19, 2014 8 99°F (Jul 13) 96°F 58°F
10 Aug 9, 2021 – Aug 16, 2021 8 99°F (Aug 14) 95°F 58°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

27
2026 so far
above-normal nights
39.1
Avg / summer
1970–2020
67
Most in a summer
2021

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

15.58"
2026 YTD
Normal: 24.63"
-9.05"
0.02"
July so far
July normal: 0.28"
-0.26"
0.14"
Summer so far
Summer normal: 1.60"
-1.46"
6
2026 heavy rain days
Days with ≥ 1.0"

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average · tan = below average · gold = 2026 (partial)

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")