Temperature
This week featured below normal temperatures for the majority of the region. The coldest regions were northern Wyoming, central South Dakota, and central Nebraska with temperatures 6°F to 8°F below normal with some spots reaching 8°F to 10°F below normal. The warmest region was the northwestern corner of Wyoming reaching 2°F to 4°F above normal.
Maximum temperatures were below normal for most of the region. Northern Nebraska, eastern South Dakota, and northern Wyoming reached temperatures 11°F below normal. Temperatures in southeastern Kansas, southcentral Colorado, and the Nebraska-South Dakota-Wyoming border reached 0°F to 2°F above normal. The warmest temperature was 94°F in Grand Junction, Colorado which is normal for the area.
Minimum temperatures were 4°F to 10°F below normal in central and northern Nebraska, central and western South Dakota, and central and western Wyoming. The coldest temperature was 46°F in Alamosa, Colorado which is normal for the area, and Casper, Wyoming which is 5°F below normal for the area. Temperatures in the northwestern and southeastern corners of Wyoming reached 6°F to 8°F above normal.
Precipitation
Precipitation amounts varied this week, ranging from 2% in southwestern Wyoming, southeastern Kansas, southeastern South Dakota, and southcentral and northeastern Colorado to 800% in small spots of southwestern and eastern Colorado and northern Wyoming. Columbia, South Dakota received 7.12 inches in precipitation, well above their normal of 0.13 inches; most of this fell on the 1st. Drought continues in the region. D0 (abnormally dry) across the region was down from 43% to 40%. In the region, Colorado experienced the highest decrease in D0 conditions by 15% while Wyoming experienced the highest increase in D0 conditions with a 4% increase.
Severe Storms
Wyoming received hail 1 inch in diameter. Kansas and North Dakota received hail 1 to 1.75 inches in diameter. South Dakota and Nebraska received hail 1 to 2.75 inches in diameter, and Nebraska reported an EF-1 tornado in Lancaster County and an EF-0 tornado in Saline County. Colorado received hail 1 to 3.5 inches in diameter.