Stanley, ID

Idaho · Records since 1916–2026

☀️ 75°F
Currently in Stanley
As of 12:15 PM MDT

Records for August 11

🔥 Record High

91°F

August 11, 1969

+10° from 81° normal

❄ Record Low

18°F

August 11, 1924

-20° from 38° normal
🌞 Normal high: 81°F 🌑 Normal low: 38°F 1991–2020 normals

All-Time Records — Stanley

🔥
96°F
Hottest Day Ever
Aug 10, 2018
-54°F
Coldest Day Ever
Dec 23, 1983
🌧
2.08"
Wettest Day Ever
Oct 19, 2007
20.0"
Most Snow in One Day
Feb 18, 1986

Top 10 Record Highs — August 11

# Temp Date
🏆 91°F August 11, 1969
2 90°F August 11, 2018
3 88°F August 11, 2021
4 88°F August 11, 1996
5 87°F August 11, 1980
6 87°F August 11, 1979
7 87°F August 11, 1967
8 86°F August 11, 2015
9 86°F August 11, 2014
10 86°F August 11, 1970

Top 5 Record Lows — August 11

# Temp Date
🥶 18°F August 11, 1924
2 21°F August 11, 1918
3 26°F August 11, 1923
4 26°F August 11, 1917
5 26°F August 11, 1916
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 1916–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Stanley

threshold: 86°F (90th percentile of historical Jun–Aug highs)
4.5
Avg heat wave length
days (historical)
90°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

137 of 222 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1922–2026
2
2026 so far
4
Avg/year 1970–2025
7
Avg/year (last 10 complete)
14
Most in a year (2021)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Stanley

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 21, 1994 – Jul 31, 1994 11 92°F (Jul 22) 89°F 44°F
2 Aug 9, 1967 – Aug 18, 1967 10 90°F (Aug 17) 88°F 32°F
3 Jun 26, 2015 – Jul 4, 2015 9 93°F (Jun 28) 90°F 43°F
4 Jul 16, 2024 – Jul 24, 2024 9 93°F (Jul 23) 90°F 43°F
5 Jul 27, 1969 – Aug 4, 1969 9 91°F (Jul 28) 89°F 34°F
6 Jul 24, 2026 – Aug 1, 2026 9 90°F (Jul 31) 87°F 41°F
7 Jul 31, 1992 – Aug 8, 1992 9 89°F (Aug 2) 88°F 36°F
8 Jul 19, 2013 – Jul 26, 2013 8 89°F (Jul 23) 87°F 35°F
9 Aug 21, 1969 – Aug 27, 1969 7 93°F (Aug 24) 91°F 31°F
10 Jul 8, 2024 – Jul 14, 2024 7 93°F (Jul 10) 89°F 41°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

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

34
2026 so far
above-normal nights
29.9
Avg / summer
1970–2020
53
Most in a summer
2023

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

9.82"
2026 YTD
Normal: 10.83"
-1.01"
0.00"
August so far
August normal: 0.48"
-0.48"
2.76"
Summer so far
Summer normal: 2.71"
+0.05"
0
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")

Month in Review — July 2026

62.6°F

Average temperature · July 2026

4th-warmest month on record

4th-warmest July of 62 on record

+4.2° vs. 58.4° average (1991–2020)
64.5°F
Warmest month ever
July 2021
64.5°F
Warmest July ever
2021
90°F
Hottest of 2026
Jul 20

Average July Temperature by Year

1916–2026 · 2026 highlighted


Warmest Julys on Record

# Year Avg Temp
1 2021 64.5°F
2 2007 63.6°F
3 2017 62.9°F
4 2026 62.6°F
5 2024 61.8°F
6 2006 61.6°F
7 2014 61.6°F
8 2018 61.3°F
9 2022 61.1°F
10 2003 60.8°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 2021 64.5°F
2 July 2007 63.6°F
3 July 2017 62.9°F
4 July 2026 62.6°F
5 August 2022 62.1°F
6 July 2024 61.8°F
7 July 2006 61.6°F
8 July 2014 61.6°F
9 July 2018 61.3°F
10 July 2022 61.1°F

Nearby Stations — July 2026

How the same month ranked at the closest reporting stations

Station Avg Temp July Rank
Stanley, ID 62.6°F 4th of 62
Challis, ID 72.0°F 11th of 105
McCall, ID 68.0°F 6th of 103
Boise, ID 81.0°F 9th of 149
Salmon, ID 72.5°F 8th of 108
About this data. Monthly averages are the mean of daily average temperatures, computed from NOAA Threadex records via RCC ACIS. Months missing more than three days of observations are excluded from the rankings, so the in-progress month never appears. Rankings cover 727 complete months on record.