Climate at a Glance

Regional 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 April 2020. For more information, please see Climatological Rankings.


Lower Colorado River Basin

Average Temperature Rankings, December 1999

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
December 1999
1-Month
40.6°F
(4.8°C)
40.2°F
(4.6°C)
0.4°F
(0.2°C)
70th Coolest Coolest since: 1997 1909
56th Warmest Warmest since: 1998 1980
Ties: 1935, 1975
Nov–Dec 1999
2-Month
47.2°F
(8.4°C)
44.1°F
(6.7°C)
3.1°F
(1.7°C)
115th Coolest Coolest since: 1998 1931
11th Warmest Warmest since: 1995 2017
Ties: 1942
Oct–Dec 1999
3-Month
52.4°F
(11.3°C)
49.3°F
(9.6°C)
3.1°F
(1.7°C)
120th Coolest Coolest since: 1998 1911
6th Warmest Warmest since: 1995 2017
Ties: 1917, 2014
Sep–Dec 1999
4-Month
57.2°F
(14.0°C)
54.8°F
(12.7°C)
2.4°F
(1.3°C)
118th Coolest Coolest since: 1998 1912
8th Warmest Warmest since: 1995 2017
Ties: 1937, 2001, 2003, 2010
Aug–Dec 1999
5-Month
61.1°F
(16.2°C)
59.2°F
(15.1°C)
1.9°F
(1.1°C)
110th Coolest Coolest since: 1998 1912
16th Warmest Warmest since: 1995 2017
Ties: 2008
Jul–Dec 1999
6-Month
63.8°F
(17.7°C)
62.4°F
(16.9°C)
1.4°F
(0.8°C)
103rd Coolest Coolest since: 1998 1912
23rd Warmest Warmest since: 1998 2017
Ties: 1958, 1981, 1998, 2011
Jun–Dec 1999
7-Month
65.2°F
(18.4°C)
64.0°F
(17.8°C)
1.2°F
(0.6°C)
98th Coolest Coolest since: 1998 1912
28th Warmest Warmest since: 1996 2017
Ties: 1901, 1994, 2006
May–Dec 1999
8-Month
65.1°F
(18.4°C)
64.0°F
(17.8°C)
1.1°F
(0.6°C)
98th Coolest Coolest since: 1998 1912
28th Warmest Warmest since: 1996 2017
Ties: 1901, 1954, 1989, 1994, 2015
Apr–Dec 1999
9-Month
63.7°F
(17.6°C)
63.1°F
(17.3°C)
0.6°F
(0.3°C)
82nd Coolest Coolest since: 1998 1912
44th Warmest Warmest since: 1997 2017
Ties: 1902, 1933, 1963, 1969
Mar–Dec 1999
10-Month
62.5°F
(16.9°C)
61.6°F
(16.4°C)
0.9°F
(0.5°C)
88th Coolest Coolest since: 1998 1912
38th Warmest Warmest since: 1997 2017
Ties: 1943, 1958, 1959
Feb–Dec 1999
11-Month
61.1°F
(16.2°C)
60.0°F
(15.6°C)
1.1°F
(0.6°C)
100th Coolest Coolest since: 1998 1912
26th Warmest Warmest since: 1996 2017
Ties: 1943, 1994
Jan–Dec 1999
12-Month
59.6°F
(15.3°C)
58.2°F
(14.6°C)
1.4°F
(0.7°C)
104th Coolest Coolest since: 1998 1912
22nd Warmest Warmest since: 1996 2017
Ties: 1940
Jul 1998–Dec 1999
18-Month
61.0°F
(16.1°C)
59.6°F
(15.3°C)
1.4°F
(0.8°C)
106th Coolest Coolest since: 1998 1913
19th Warmest Warmest since: 1996 2017
Ties: 2001, 2011, 2013
Jan 1998–Dec 1999
24-Month
59.0°F
(15.0°C)
58.3°F
(14.6°C)
0.7°F
(0.4°C)
93rd Coolest Coolest since: 1998 1913
32nd Warmest Warmest since: 1997 2018
Ties: 1901, 1954
Jan 1997–Dec 1999
36-Month
59.1°F
(15.1°C)
58.3°F
(14.6°C)
0.8°F
(0.5°C)
97th Coolest Coolest since: 1994 1913
27th Warmest Warmest since: 1998 2018
Ties: 1989
Jan 1996–Dec 1999
48-Month
59.5°F
(15.3°C)
58.2°F
(14.6°C)
1.3°F
(0.7°C)
102nd Coolest Coolest since: 1998 1915
21st Warmest Warmest since: 1998 2017, 2018
Ties: 1998
Jan 1995–Dec 1999
60-Month
59.6°F
(15.3°C)
58.3°F
(14.6°C)
1.3°F
(0.7°C)
103rd Coolest Coolest since: 1998 1915, 1916
19th Warmest Warmest since: 1997 2018
Ties: 1997, 2001, 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published May 2020, retrieved on May 28, 2020 from https://www.ncdc.noaa.gov/cag/