Monday, July 10, 2017

June 2017 Climate Data for Memphis, TN

June Climate Recap

For the first time in recent memory, Memphis International Airport experienced consecutive months of below average temperatures in May and June. May 2017 was the first month that was cooler than average in a calendar year and this month was the first June that was cooler than average in 13 years, according to the National Weather Service. In fact, Memphis usually sees its first 90° reading on May 24 on average, but this year didn't reach that mark until June 6. Only eight days recorded temperatures of 90 degrees or higher, which was six below normal for the month and now eight below average for the year. However, for the year, the average temperature is still 3.5 degrees above normal.

Radar animation as Tropical Depression Cindy moved across Shelby County on the morning of June 23, 2017.

Precipitation-wise, June was a bit wetter than average. Sporadic thunderstorms associated with diurnal thunderstorms provided some rainfall, but the remnants of Tropical Storm Cindy moving directly over the metro on the 23rd provided record-setting precipitation on that day, as well as strong southerly wind gusts. Outside of Cindy, there were a few other severe weather episodes. Hail just below severe criteria fell on the 1st in south Memphis. Wind damage occurred in multiple locations across the metro, mainly in the form of downed trees, on the 18th. Leading up to the arrival of Cindy, a brief tornado touchdown occurred near Red Banks in Marshall County on the 22nd. Finally, on June 30th, lightning resulted in a fatality, a female who was at home in Cordova when lightning struck her home.

Memphis International Airport, Memphis, TN

Average temperature: 78.4 degrees (1.2 degrees below average)
Average high temperature: 87.4 degrees (1.5 degrees below average)
Average low temperature: 69.5 degrees (0.8 degrees below average)
Warmest temperature: 92 degrees (14th, 20th)
Coolest temperature: 59 degrees (9th)
Heating Degrees Days: 0 (0 above average)
Cooling Degree Days: 410 (28 below average)
Records set or tied: None
Comments: Year to date, the average temperature of 62.7° is 3.5° above normal and second warmest on record (2012).

Monthly total: 4.61" (0.98" above average)
Days with measurable precipitation: 10 (1.0 days above average)
Wettest 24-hour period: 1.63" (23rd)
Snowfall: None
Records set or tied: Daily precipitation record set - 23rd (1.63")
Comments: Year to date, precipitation has totaled 23.46" or 84% of normal.

Peak wind: South/47 mph (23rd)
Average wind: 7.5 mph
Average relative humidity: 72%
Average sky cover: 50%

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

Cirrus Weather Solutions /, Bartlett, TN

Average temperature: 77.1 degrees
Average high temperature: 87.4 degrees
Average low temperature: 67.2 degrees
Warmest temperature: 92.7 degrees (14th)
Coolest temperature: 54.7 degrees (9th)
Comments: None

Monthly total: 4.43"(automated rain gauge), 4.58" (manual CoCoRaHS rain gauge)
Days with measurable precipitation: 12
Wettest date: 1.98" (23rd) (via automated gauge)
Snowfall: None
Comments: Precipitation on the 23rd was associated with the remnants of Tropical Storm Cindy.

Peak wind: South/31 mph (23rd)
Average relative humidity: 76%
Average barometric pressure: 29.96 in. Hg
Comments: None

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

MWN Forecast Accuracy

MWN average temperature error: 1.66 degrees
MWN forecast temperatures within 2 degrees of actual: 80%
MWN average dewpoint error: 2.20 degrees
MWN forecast dewpoints within 2 degrees of actual: 64%

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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