Climate at a Glance
Statewide 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 July 2022. For more information, please see Climatological Rankings.
Wyoming
Precipitation Rankings, September 1999
View Period (Months):All1234567891011121824364860
Download:
| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Wettest/Driest Since |
Record |
|---|---|---|---|---|---|---|
|
September 1999 1-Month |
1.54" (39.12mm) | 1.24" (31.50mm) |
0.30" (7.62mm) | 93rd Driest | Driest since: 1998 | 1979 |
| 35th Wettest | Wettest since: 1997 | 1923 | ||||
|
Aug–Sep 1999 2-Month |
2.58" (65.53mm) | 2.31" (58.67mm) |
0.27" (6.86mm) | 85th Driest | Driest since: 1996 | 2012 |
| 43rd Wettest | Wettest since: 1998 | 1923 | ||||
| Ties: 1980 | ||||||
|
Jul–Sep 1999 3-Month |
3.39" (86.11mm) | 3.59" (91.19mm) |
-0.20" (-5.08mm) | 66th Driest | Driest since: 1996 | 1964 |
| 62nd Wettest | Wettest since: 1998 | 1923 | ||||
|
Jun–Sep 1999 4-Month |
5.56" (141.22mm) | 5.43" (137.92mm) |
0.13" (3.30mm) | 77th Driest | Driest since: 1996 | 2012 |
| 51st Wettest | Wettest since: 1998 | 1923 | ||||
| Ties: 1977, 1991 | ||||||
|
May–Sep 1999 5-Month |
7.74" (196.60mm) | 7.64" (194.06mm) |
0.10" (2.54mm) | 71st Driest | Driest since: 1996 | 1919 |
| 57th Wettest | Wettest since: 1998 | 1915 | ||||
| Ties: 2009 | ||||||
|
Apr–Sep 1999 6-Month |
11.05" (280.67mm) | 9.42" (239.27mm) |
1.63" (41.40mm) | 103rd Driest | Driest since: 1998 | 2012 |
| 25th Wettest | Wettest since: 1997 | 1941 | ||||
|
Mar–Sep 1999 7-Month |
11.80" (299.72mm) | 10.67" (271.02mm) |
1.13" (28.70mm) | 91st Driest | Driest since: 1996 | 2012 |
| 37th Wettest | Wettest since: 1998 | 1941 | ||||
|
Feb–Sep 1999 8-Month |
12.97" (329.44mm) | 11.63" (295.40mm) |
1.34" (34.04mm) | 93rd Driest | Driest since: 1996 | 2012 |
| 35th Wettest | Wettest since: 1998 | 1945 | ||||
|
Jan–Sep 1999 9-Month |
14.19" (360.43mm) | 12.70" (322.58mm) |
1.49" (37.85mm) | 97th Driest | Driest since: 1996 | 1919 |
| 31st Wettest | Wettest since: 1998 | 1915, 1945 | ||||
|
Dec 1998–Sep 1999 10-Month |
15.03" (381.76mm) | 13.71" (348.23mm) |
1.32" (33.53mm) | 91st Driest | Driest since: 1996 | 1919 |
| 36th Wettest | Wettest since: 1998 | 1923 | ||||
|
Nov 1998–Sep 1999 11-Month |
16.24" (412.50mm) | 14.74" (374.40mm) |
1.50" (38.10mm) | 96th Driest | Driest since: 1998 | 1919 |
| 31st Wettest | Wettest since: 1997 | 1923 | ||||
| Ties: 1907 | ||||||
|
Oct 1998–Sep 1999 12-Month |
19.05" (483.87mm) | 15.94" (404.88mm) |
3.11" (78.99mm) | 116th Driest | Driest since: 1998 | 1919 |
| 11th Wettest | Wettest since: 1997 | 1995 | ||||
|
Apr 1998–Sep 1999 18-Month |
29.63" (752.60mm) | 25.35" (643.89mm) |
4.28" (108.71mm) | 122nd Driest | Driest since: 1998 | 2021 |
| 5th Wettest | Wettest since: 1945 | 1945 | ||||
|
Oct 1997–Sep 1999 24-Month |
36.58" (929.13mm) | 31.88" (809.75mm) |
4.70" (119.38mm) | 120th Driest | Driest since: 1997 | 2002 |
| 6th Wettest | Wettest since: 1998 | 1998 | ||||
|
Oct 1996–Sep 1999 36-Month |
56.84" (1,443.74mm) | 47.81" (1,214.37mm) |
9.03" (229.37mm) | 123rd Driest | Driest since: 1998 | 2002 |
| 2nd Wettest | Wettest since: 1997 | 1997 | ||||
|
Oct 1995–Sep 1999 48-Month |
72.93" (1,852.42mm) | 63.72" (1,618.49mm) |
9.21" (233.93mm) | 121st Driest | Driest since: 1997 | 2003 |
| 3rd Wettest | Wettest since: 1998 | 1998 | ||||
|
Oct 1994–Sep 1999 60-Month |
94.28" (2,394.71mm) | 79.56" (2,020.82mm) |
14.72" (373.89mm) | 122nd Driest | Driest since: 1998 | 2004 |
| 1st Wettest | Wettest to Date | 1999 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2022, retrieved on August 15, 2022 from https://www.ncei.noaa.gov/cag/