Climate at a Glance

City Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of December 2019. For more information, please see Climatological Rankings.


Boise, Idaho

Average Temperature Rankings, May 1999

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1940-2019)
Warmest/Coolest
Since
Record
May 1999
1-Month
55.9°F
(13.3°C)
59.0°F
(15.0°C)
-3.1°F
(-1.7°C)
15th Coolest Coolest since: 1984 2010
66th Warmest Warmest since: 1998 1992
Ties: 1982, 1984
Apr–May 1999
2-Month
51.8°F
(11.0°C)
54.9°F
(12.7°C)
-3.1°F
(-1.7°C)
12th Coolest Coolest since: 1984 1955
69th Warmest Warmest since: 1998 1992
Mar–May 1999
3-Month
49.2°F
(9.6°C)
51.5°F
(10.8°C)
-2.3°F
(-1.2°C)
20th Coolest Coolest since: 1984 1955
61st Warmest Warmest since: 1998 1992
Feb–May 1999
4-Month
46.2°F
(7.9°C)
47.8°F
(8.8°C)
-1.6°F
(-0.9°C)
27th Coolest Coolest since: 1989 1955
54th Warmest Warmest since: 1998 1992
Jan–May 1999
5-Month
44.0°F
(6.7°C)
44.4°F
(6.9°C)
-0.4°F
(-0.2°C)
36th Coolest Coolest since: 1993 1955
45th Warmest Warmest since: 1998 1992
Ties: 1967
Dec 1998–May 1999
6-Month
41.8°F
(5.4°C)
42.1°F
(5.6°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest since: 1993 1955
46th Warmest Warmest since: 1998 1992
Ties: 1946, 1951, 1968, 2014
Nov 1998–May 1999
7-Month
42.1°F
(5.6°C)
41.9°F
(5.5°C)
0.2°F
(0.1°C)
43rd Coolest Coolest since: 1993 1985
37th Warmest Warmest since: 1998 1992
Oct 1998–May 1999
8-Month
43.3°F
(6.3°C)
43.2°F
(6.2°C)
0.1°F
(0.1°C)
44th Coolest Coolest since: 1993 1985
36th Warmest Warmest since: 1998 1992
Ties: 1946
Sep 1998–May 1999
9-Month
46.3°F
(7.9°C)
45.6°F
(7.6°C)
0.7°F
(0.3°C)
58th Coolest Coolest since: 1995 1985
22nd Warmest Warmest since: 1998 1992
Ties: 1959, 1981, 1990
Aug 1998–May 1999
10-Month
49.3°F
(9.6°C)
48.5°F
(9.2°C)
0.8°F
(0.4°C)
65th Coolest Coolest since: 1996 1955
15th Warmest Warmest since: 1998 1992
Ties: 1959, 1987, 1995
Jul 1998–May 1999
11-Month
52.1°F
(11.2°C)
51.0°F
(10.6°C)
1.1°F
(0.6°C)
69th Coolest Coolest since: 1998 1955, 1985
11th Warmest Warmest since: 1998 2015
Ties: 1998
Jun 1998–May 1999
12-Month
53.0°F
(11.7°C)
52.3°F
(11.3°C)
0.7°F
(0.4°C)
60th Coolest Coolest since: 1996 1955
20th Warmest Warmest since: 1998 2016
Ties: 1987, 1988, 1990, 2005, 2013
Dec 1997–May 1999
18-Month
49.9°F
(9.9°C)
49.0°F
(9.4°C)
0.9°F
(0.5°C)
68th Coolest Coolest since: 1996 1985
11th Warmest Warmest since: 1998 2016
Ties: 1988, 2000
Jun 1997–May 1999
24-Month
53.2°F
(11.8°C)
52.4°F
(11.3°C)
0.8°F
(0.5°C)
68th Coolest Coolest since: 1997 1985
11th Warmest Warmest since: 1998 2016
Ties: 2013
Jun 1996–May 1999
36-Month
53.3°F
(11.8°C)
52.3°F
(11.3°C)
1.0°F
(0.5°C)
69th Coolest Coolest since: 1998 1986
9th Warmest Warmest to Date 2016
Jun 1995–May 1999
48-Month
53.1°F
(11.7°C)
52.3°F
(11.3°C)
0.8°F
(0.4°C)
66th Coolest Coolest since: 1997 1986
11th Warmest Warmest since: 1998 2018
Jun 1994–May 1999
60-Month
53.2°F
(11.8°C)
52.3°F
(11.3°C)
0.9°F
(0.5°C)
69th Coolest Coolest since: 1998 1986
7th Warmest Warmest to Date 2018, 2019
Ties: 2015

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published January 2020, retrieved on January 22, 2020 from https://www.ncdc.noaa.gov/cag/