Riverton 2014 Annual Climate Summary

Areas of Extreme Heat and Fire Weather in the Northwest U.S.; Heavy Rain in the West and South-central U.S.

Extreme heat will continue in the interior Northwest into midweek before finally waning. Hot temperatures, dry, gusty winds, and isolated dry thunderstorms will bring critical fire weather. Heavy rain and thunderstorms are expected across portions of the Great Basin, Rockies, and central/southern Plains. An atmospheric river will bring heavy rain and strong winds to southwest Alaska. Read More >

2014 Climate Summary for Downtown Riverton
Temperature °F		Precipitation		Snowfall

Temperature °F
Element	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Average High	33.6	32.1	49.2	59.6	70.3	77.7	88.2	82.5	74.4	66.5	39.4	32.5	58.8
Average Low	9.0	8.5	21.7	30.7	41.3	47.0	55.5	53.3	48.6	34.3	13.9	11.4	31.3
Average Temp	21.3	20.3	35.5	45.2	55.8	62.4	71.9	67.9	61.5	50.4	26.7	22.0	45.1
Departure from Normal	+2.7	-3.9	-0.6	-0.2	+1.2	-1.4	+0.8	-1.1	+1.5	+5.4	-3.6	+4.6	+0.6
Rank - Top 10 Warmest or Coldest only (P.O.R. 1907-2014)	NA	NA	NA	NA	NA	NA	NA	NA	NA	4*	NA	NA	NA
Highest Daily Maximum	50	56	67	74	90	87	98	94	95	77	73	57	98
Date of Occurrence	11	16	10	9	28	10,13	9,23,24	12	5	24	1	13	7/9,7/23,7/24
Lowest Daily Minimum	-25	-24	-3	12	26	35	45	42	29	25	-21	-30	-30
Date of Occurrence	6	6	2	14	1	15	1	24	28	29	13	31	12/31
Number of Days with:
Maximum >= 90°	0	0	0	0	1	0	14	6	3	0	0	0	24
Maximum <= 32°	11	16	2	1	0	0	0	0	0	0	13	15	58
Minimum <= 32°	31	28	28	18	6	0	0	0	2	17	26	31	187
Minimum <= 0°	6	9	1	0	0	0	0	0	0	0	7	4	27
Record Highs Set or Tied	0	0	0	0	0	0	0	0	2	2	3	0	7
Record Lows Set or Tied	0	0	0	0	0	0	0	0	1	0	1	0	2
1981-2010 Normals
* October 2014 was the 4th warmest on record. Records set during 2014: Temperatures (degrees F): The high temperature of 73 degrees on November 1st tied the record high temperature for the month of November and tied the record for the warmest high temperature for so late in the season. The low temperature of -21 degrees on November 13th set a record for the coldest low temperature for so early in the season. Minimum Max February : High Temperature on the 5th was -2 degrees and that was the coldest Maximum High Temp on record. High Temperature on the 6th was -3 degrees and that was the coldest Maximum High Temp on record. March : High Temperature on the 1st was 7 degrees and that was the coldest Maximum High Temp on record. Max September: 88 on the 25th was a new record high for the date. 89 on the 26th was a new record high for the date. October: 77 on the 24th was a new record high for the date. 76 on the 25th tied the record high for the date. November: 73 on the 1st was a new record high for the date. 67 on the 9th was a new record high for the date. 59 on the 28th was a new record high for the date. Min September : 28 on the 12th tied the record low for the date. November: -21 on the 13th was a new record low for the date.


Precipitation
Element	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Total (inches)	0.63	0.14	0.49	0.32	1.07	1.62	0.64	1.11	0.85	0.18	0.41	0.55	8.01
Departure from Normal	+0.35	-0.19	-0.07	-0.66	-0.38	+0.41	-0.14	+0.61	+0.02	-0.67	0.0	+0.31	-0.41
Percent of Normal	225	42	88	33	74	134	82	222	102	21	100	229	95
Rank - Top 10 Driest or Wettest only	3*	NA	NA	NA	NA	NA	NA	9**	NA	NA	NA	NA	NA
Greatest 24-HR Total	0.47	0.08	0.22	0.16	0.26	1.20	0.44	0.28	0.55	0.09	0.18	0.18	1.20
Dates of Occurrence	3-4	22-23	17-18	13	6-7	26-27	29	5-6	28-29	12	10-11	25-26	6/26-6/27
Number of Days with:
Precipitation >= 0.01	4	3	7	5	6	6	4	10	5	3	6	7	66
Precipitation >= 0.10	2	0	2	1	5	3	2	5	2	0	2	2	26
Precipitation >= 1.00	0	0	0	0	0	1	0	0	0	0	0	0	1
Days with Thunderstorms	0	0	2	2	5	4	1	7	4	0	0	0	25
Daily Precipitaton Records Set or Tied	1	0	0	0	0	1	0	0	1	0	0	0	3
* January 2014 was the 3rd wettest on record. August 2014 was the 9th wettest on record. Records set during 2014: Precipitation: One day Precipitation:** The 24 hour precipitation (7 AM to 7 AM) of 0.13 inches for January 3rd-4th tied the record. The 24 hour precipitation (7 AM to 7 AM) of 1.20 inches for June 26th-27th was a new record. The 24 hour precipitation (7 AM to 7 AM) of 0.55 inches for September 28th-29th was a new record. The 24 hour precipitation (7 AM to 7 AM) of 0.18 inches for December 25th-26th was a new record.


Snowfall
Element	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Total (inches)	10.1	4.9	5.5	2.9	2.5	T*	0.0	0.0	0.3	T	7.8	7.4	41.4
Average Snowfall	4.8	6.0	5.9	6.1	1.2	T	0.0	0.0	0.3	3.7	4.3	4.8	37.1
Departure from Normal	+5.3	-1.1	-0.4	-3.2	+1.3	0.0	0.0	0.0	0.0	-3.7	+3.5	+2.6	+4.3
Rank - Only for TOP 10 Snowiest	9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Greatest 24-HR Total	7.4	1.8	2.0	2.0	1.8	0.0	0.0	0.0	0.3	T	3.5	3.2	7.4
Dates of Occurrence	3-4	4	17-18	13	11-12	NA	NA	NA	11	2-3	10-11	25-26	1/3-1/4
Number of Days with:
Snowfall >= 1.0 inch	2	3	3	1	1	0	0	0	0	0	3	3	16
Daily Snowfall Records Set or Tied	1	0	0	0	0	0	0	0	1	0	0	1	2

January 2014 tied for 9th snowiest on record. * Snowfall in June 2014 was due to hail occurring on 2 different days. Records set during 2014: Snowfall: One day Snowfall: The 7.4 inches of snowfall for the 24 hour period from 7AM January 3rd to 7AM January 4th was a new record. The 0.3 inches of snowfall for the 24 hour period from 7AM September 11th to 7AM September 12th was a new record. The 3.2 inches of snowfall for the 24 period from 7AM December 25th to 7AM December 26th was a new record.

2014 Climate Summary for Downtown Riverton

Average Temperture for 2014 was Above Normal for the Year
- January, October and December were well above normal
- February was well below normal
- November was below normal overall but saw record highs and lows
Precipitation for 2014 was Below Normal
O January, June, August and December were well above normal O February, April and October were well below normal
Snowfall in 2014 was Above Average
O January was well above normal
O April and October were well below normal O November and December were well above normal

Temperature °F

Precipitation

Snowfall

Temperature °F

Element

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Average High

33.6

32.1

49.2

59.6

70.3

77.7

88.2

82.5

74.4

66.5

39.4

32.5

58.8

Average Low

9.0

8.5

21.7

30.7

41.3

47.0

55.5

53.3

48.6

34.3

13.9

11.4

31.3

Average Temp

21.3

20.3

35.5

45.2

55.8

62.4

71.9

67.9

61.5

50.4

26.7

22.0

45.1

Departure from Normal

+2.7

-3.9

-0.6

-0.2

+1.2

-1.4

+0.8

-1.1

+1.5

+5.4

-3.6

+4.6

+0.6

Rank - Top 10 Warmest or Coldest only (P.O.R. 1907-2014)

Highest Daily Maximum

Date of Occurrence

10,13

9,23,24

7/9,7/23,7/24

Lowest Daily Minimum

-25

-24

-3

-21

-30

Date of Occurrence

12/31

Number of Days with:

Maximum >= 90°

Maximum <= 32°

Minimum <= 32°

187

Minimum <= 0°

Record Highs Set or Tied

Record Lows Set or Tied

1981-2010 Normals

* October 2014 was the 4th warmest on record.

Records set during 2014:

Temperatures (degrees F):

The high temperature of 73 degrees on November 1st tied the record high temperature for the month of November and tied the record for the warmest high temperature for so late in the season.

The low temperature of -21 degrees on November 13th set a record for the coldest low temperature for so early in the season.

Minimum Max

February : High Temperature on the 5th was -2 degrees and that was the coldest Maximum High Temp on record. High Temperature on the 6th was -3 degrees and that was the coldest Maximum High Temp on record.

March : High Temperature on the 1st was 7 degrees and that was the coldest Maximum High Temp on record.

Max

September: 88 on the 25th was a new record high for the date.
89 on the 26th was a new record high for the date.

October: 77 on the 24th was a new record high for the date. 76 on the 25th tied the record high for the date.

November: 73 on the 1st was a new record high for the date.
67 on the 9th was a new record high for the date. 59 on the 28th was a new record high for the date.

Min

September : 28 on the 12th tied the record low for the date.

November: -21 on the 13th was a new record low for the date.

Precipitation

Element

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Total (inches)

0.63

0.14

0.49

0.32

1.07

1.62

0.64

1.11

0.85

0.18

0.41

0.55

8.01

Departure from Normal

+0.35

-0.19

-0.07

-0.66

-0.38

+0.41

-0.14

+0.61

+0.02

-0.67

0.0

+0.31

-0.41

Percent of Normal

225

134

222

102

100

229

Rank - Top 10 Driest or Wettest only

9**

Greatest 24-HR Total

0.47

0.08

0.22

0.16

0.26

1.20

0.44

0.28

0.55

0.09

0.18

1.20

Dates of Occurrence

3-4

22-23

17-18

6-7

26-27

5-6

28-29

10-11

25-26

6/26-6/27

Number of Days with:

Precipitation >= 0.01

Precipitation >= 0.10

Precipitation >= 1.00

Days with Thunderstorms

Daily Precipitaton Records Set or Tied

* January 2014 was the 3rd wettest on record.

** August 2014 was the 9th wettest on record.

Records set during 2014:

Precipitation:

One day Precipitation:

The 24 hour precipitation (7 AM to 7 AM) of 0.13 inches for January 3rd-4th tied the record.

The 24 hour precipitation (7 AM to 7 AM) of 1.20 inches for June 26th-27th was a new record.

The 24 hour precipitation (7 AM to 7 AM) of 0.55 inches for September 28th-29th was a new record.

The 24 hour precipitation (7 AM to 7 AM) of 0.18 inches for December 25th-26th was a new record.

Snowfall

Element

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Total (inches)

10.1

4.9

5.5

2.9

2.5

0.0

0.3

7.8

7.4

41.4

Average Snowfall

4.8

6.0

5.9

6.1

1.2

0.0

0.3

3.7

4.3

4.8

37.1

Departure from Normal

+5.3

-1.1

-0.4

-3.2

+1.3

0.0

-3.7

+3.5

+2.6

+4.3

Rank - Only for TOP 10 Snowiest

Greatest 24-HR Total

7.4

1.8

2.0

1.8

0.0

0.3

3.5

3.2

7.4

Dates of Occurrence

3-4

17-18

11-12

2-3

10-11

25-26

1/3-1/4

Number of Days with:

Snowfall >= 1.0 inch

Daily Snowfall Records Set or Tied

January 2014 tied for 9th snowiest on record.

* Snowfall in June 2014 was due to hail occurring on 2 different days.

Records set during 2014:

Snowfall:

One day Snowfall:

The 7.4 inches of snowfall for the 24 hour period from 7AM January 3rd to 7AM January 4th was a new record.

The 0.3 inches of snowfall for the 24 hour period from 7AM September 11th to 7AM September 12th was a new record.

The 3.2 inches of snowfall for the 24 period from 7AM December 25th to 7AM December 26th was a new record.