Boise, ID
Idaho · Records since 1875–2026
☁️ 58°F
Currently in Boise
As of 11:45 PM MDT
Records for June 27
🔥 Record High
106°F
June 27, 2015
+20° from 86° normal❄ Record Low
41°F
June 27, 1980
-16° from 57° normal
🌞 Normal high: 86°F
🌑 Normal low: 57°F
1991–2020 normals
All-Time Records — Boise
111°F
Hottest Day Ever
Jul 19, 1960
-28°F
Coldest Day Ever
Jan 16, 1888
2.46"
Wettest Day Ever
Mar 29, 1904
15.5"
Most Snow in One Day
Feb 2, 1916
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
121 of 176 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1970–20268
2026 so far
52
Avg/year 1970–2025
62
Avg/year (last 10 complete)
73
Most in a year (2013)
Top 10 Record Highs — June 27
| # | Temp | Date |
|---|---|---|
| 🏆 | 106°F | June 27, 2015 |
| 2 | 104°F | June 27, 2022 |
| 3 | 104°F | June 27, 1892 |
| 4 | 101°F | June 27, 2016 |
| 5 | 101°F | June 27, 2006 |
| 6 | 101°F | June 27, 1925 |
| 7 | 100°F | June 27, 1926 |
| 8 | 99°F | June 27, 2021 |
| 9 | 98°F | June 27, 1987 |
| 10 | 98°F | June 27, 1883 |
Top 5 Record Lows — June 27
| # | Temp | Date |
|---|---|---|
| 🥶 | 41°F | June 27, 1980 |
| 2 | 41°F | June 27, 1965 |
| 3 | 41°F | June 27, 1887 |
| 4 | 42°F | June 27, 1945 |
| 5 | 43°F | June 27, 1998 |
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
6.80"
2026 YTD
Normal: 7.10"
-0.30"
0.17"
June so far
June normal: 0.75"
-0.58"
0.17"
Summer so far
Summer normal: 1.13"
-0.96"
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")
Even when annual totals stay similar, storms can become more intense and concentrated
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
14
2026 so far
above-normal nights
34.8
Avg / summer
1970–2020
68
Most in a summer
2022
Above-Normal Summer Nights Per Year
Average June–August Low Temperature by Decade
Decade averages of the actual overnight low