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 January 2020. For more information, please see Climatological Rankings.


Boise, Idaho

Average Temperature Rankings, December 2009

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
December 2009
1-Month
26.2°F
(-3.2°C)
30.3°F
(-0.9°C)
-4.1°F
(-2.3°C)
8th Coolest Coolest since: 1990 1985
68th Warmest Warmest since: 2008 1973
Nov–Dec 2009
2-Month
33.5°F
(0.8°C)
35.3°F
(1.8°C)
-1.8°F
(-1.0°C)
12th Coolest Coolest since: 2005 1985
64th Warmest Warmest since: 2008 1981
Oct–Dec 2009
3-Month
38.3°F
(3.5°C)
41.2°F
(5.1°C)
-2.9°F
(-1.6°C)
5th Coolest Coolest since: 1990 1985
71st Warmest Warmest since: 2008 1950
Ties: 1959
Sep–Dec 2009
4-Month
46.3°F
(7.9°C)
47.2°F
(8.4°C)
-0.9°F
(-0.5°C)
19th Coolest Coolest since: 2005 1985
57th Warmest Warmest since: 2008 1963
Ties: 1990
Aug–Dec 2009
5-Month
51.9°F
(11.1°C)
52.7°F
(11.5°C)
-0.8°F
(-0.4°C)
18th Coolest Coolest since: 2000 1985
58th Warmest Warmest since: 2008 2012
Ties: 1954, 1970
Jul–Dec 2009
6-Month
56.3°F
(13.5°C)
56.6°F
(13.7°C)
-0.3°F
(-0.2°C)
24th Coolest Coolest since: 2000 1985
52nd Warmest Warmest since: 2008 2012
Ties: 1990
Jun–Dec 2009
7-Month
57.9°F
(14.4°C)
58.3°F
(14.6°C)
-0.4°F
(-0.2°C)
29th Coolest Coolest since: 2005 1985
47th Warmest Warmest since: 2008 2012
Ties: 1970
May–Dec 2009
8-Month
58.3°F
(14.6°C)
58.4°F
(14.7°C)
-0.1°F
(-0.1°C)
35th Coolest Coolest since: 2005 1985
40th Warmest Warmest since: 2008 2015
Ties: 1989, 1991
Apr–Dec 2009
9-Month
57.4°F
(14.1°C)
57.6°F
(14.2°C)
-0.2°F
(-0.1°C)
33rd Coolest Coolest since: 2005 1985
42nd Warmest Warmest since: 2008 2012
Ties: 1947, 1967, 1981
Mar–Dec 2009
10-Month
55.7°F
(13.2°C)
56.2°F
(13.4°C)
-0.5°F
(-0.2°C)
26th Coolest Coolest since: 1985 1985
49th Warmest Warmest since: 2008 2015
Ties: 2010
Feb–Dec 2009
11-Month
54.0°F
(12.2°C)
54.5°F
(12.5°C)
-0.5°F
(-0.3°C)
28th Coolest Coolest since: 2008 1985
45th Warmest Warmest since: 2008 2015
Ties: 1980, 2005, 2008
Jan–Dec 2009
12-Month
52.0°F
(11.1°C)
52.4°F
(11.3°C)
-0.4°F
(-0.2°C)
27th Coolest Coolest since: 2008 1985
46th Warmest Warmest since: 2007 2015
Ties: 1950, 1977
Jul 2008–Dec 2009
18-Month
53.9°F
(12.2°C)
53.9°F
(12.2°C)
0.0°F
(0.0°C)
42nd Coolest Coolest since: 2008 1985
31st Warmest Warmest since: 2008 2015
Ties: 1980, 1981, 2005, 2008, 2010
Jan 2008–Dec 2009
24-Month
52.0°F
(11.1°C)
52.4°F
(11.3°C)
-0.4°F
(-0.2°C)
28th Coolest Coolest since: 1986 1985
42nd Warmest Warmest since: 2008 2016
Ties: 1947, 1971
Jan 2007–Dec 2009
36-Month
52.7°F
(11.5°C)
52.4°F
(11.3°C)
0.3°F
(0.2°C)
45th Coolest Coolest since: 1991 1985
22nd Warmest Warmest since: 2008 2016
Jan 2006–Dec 2009
48-Month
52.9°F
(11.6°C)
52.3°F
(11.3°C)
0.6°F
(0.3°C)
51st Coolest Coolest since: 2008 1985
13th Warmest Warmest since: 2008 2017, 2018
Ties: 1989, 1990, 2008, 2012
Jan 2005–Dec 2009
60-Month
52.8°F
(11.6°C)
52.3°F
(11.3°C)
0.5°F
(0.3°C)
44th Coolest Coolest since: 1991 1985, 1986
17th Warmest Warmest since: 2008 2018
Ties: 1991

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published February 2020, retrieved on February 29, 2020 from https://www.ncdc.noaa.gov/cag/