Thursday, May 11, 2017

April 2017 Climate Data for Memphis, TN

April Recap

April continued playing from the same sheet of music as most other months over the past year.  Of the previous 12 months, 9 were in their respective top 10 warmest, with April 2017 ending as tenth warmest. Daily temperatures were above normal on all but 7 days last month. With respect to precipitation, April is typically wet and the month didn't disappoint, ending just shy of an average month at the airport and more than an inch above average at MWN in Bartlett.

April typically is about the peak of severe weather season in the Mid-South. The airport recorded thunder on 9 days, or about twice a week. Severe weather occurred in the metro on the 21st, 29th and 30th. On the 2nd, non-thunderstorm wind caused some damage to trees, while the other 3 days were thunderstorm-related. Flash flooding was reported in Covington on the 21st. On the 29th, thunderstorm wind produced some damage across the metro and hail fell in DeSoto County during the evening. The 30th saw severe storms in the morning that caused wind damage, some significant, in various places across the metro. Two specific cases were documented on our blog, in which severe wind uprooted trees in Bartlett. There were also multiple other reports of trees and power lines down across the area.

Photos of tree damage in Bartlett on April 30. Photo credits: Erik Proseus, MWN.

Memphis International Airport, Memphis, TN

Average temperature: 66.6 degrees (3.7 degrees above average)
Average high temperature: 76.9 degrees (3.9 degrees above average)
Average low temperature: 56.4 degrees (3.5 degrees above average)
Warmest temperature: 88 degrees (29th)
Coolest temperature: 44 degrees (7th, 8th)
Heating Degrees Days: 57 (80 below average)
Cooling Degree Days: 114 (39 above average)
Records set or tied: None
Comments: April 2017 was the tenth warmest April on record.

Monthly total: 5.36" (0.14" below average)
Days with measurable precipitation: 13 (3.4 days above average)
Wettest 24-hour period: 1.06" (30th)
Snowfall: None
Records set or tied: None
Comments: None

Peak wind: Southeast/46 mph (3rd)
Average wind: 9.6 mph
Average relative humidity: 68%
Average sky cover: 50%

Click here for a daily statistical recap for Memphis International Airport.

Cirrus Weather Solutions /, Bartlett, TN

Average temperature: 66.3 degrees
Average high temperature: 77.6 degrees
Average low temperature: 55.2 degrees
Warmest temperature: 88.0 degrees (14th)
Coolest temperature: 37.9 degrees (8th)
Comments: Data only covers the period April 1-23.

Monthly total: 6.72" (automated rain gauge through April 23, then additional rainfall recorded via manual gauge), 7.12" (manual CoCoRaHS rain gauge)
Days with measurable precipitation: 9
Wettest date: 1.54" (22nd) (via automated gauge)
Snowfall: None
Comments: Data only covers the period April 1-23, except the monthly total, which is accurate through the end of the month.

Peak wind: West/26 mph (5th)
Average relative humidity: 72%
Average barometric pressure: 30.02 in. Hg
Comments: Data only covers the period April 1-23.

Click here for a daily statistical recap for Bartlett, TN.

MWN Forecast Accuracy

MWN average temperature error: 2.07 degrees
MWN forecast temperatures within 2 degrees of actual: 66%
MWN average dewpoint error: 2.42 degrees
MWN forecast dewpoints within 2 degrees of actual: 56%

MWN's forecasts extend out five periods (2.5 days, or roughly 60 hours). Historical accuracy statistics can be found here.

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