Early on May 17th a strong cold front pushed through the region, allowing for an unseasonably cold and dry Canadian airmass to settle in across the region.  Gusty winds during the afternoon quickly diminished during the evening as surface high pressure crested over the region.  The cold airmass, clear skies and no winds allowed for perfect radiational cooling temperatures.  Temperatures quickly dropped through the night with widespread sub-freezing conditions all the way to the coast.  Many areas dropped down into the upper 20s, with the coldest conditions across low-lying valley locations.  Leave-out had already occurred away from the mountains with agriculture impacts reported to berry and fruit tree crops.

Frost/Freeze in SOUTHERN FRANKLIN, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the mid-20s.  Farmington reported a low of 28 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in KENNEBEC, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Farmingdale reported a low of 28 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in LINCOLN, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Wiscasset reported a low of 29 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in SOUTHERN OXFORD, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the mid-20s.  Fryeburg reported a low of 27 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in SAGADAHOC, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Topsham reported a low of 28 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in SOUTHERN SOMERSET, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Palmyra reported a low of 27 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in CENTRAL INTERIOR CUMBERLAND, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the mid-20s.  Sebago reported a low of 28 degrees.  The temperatures were some of the coldest recorded this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing temperatures.

Frost/Freeze in INTERIOR CUMBERLAND HIGHLANDS, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the mid-20s.  Harrison reported a low of 26 degrees.  The temperatures were some of the coldest recorded this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing temperatures.

Frost/Freeze in INTERIOR WALDO, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Freedom reported a low of 27 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in INTERIOR YORK, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the mid-20s.  Sanford reported a low of 23 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in COASTAL CUMBERLAND, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Portland Jetport reported a low of 30 degrees.  The temperatures were some of the coldest recorded this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing temperatures.

Frost/Freeze in COASTAL YORK, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the upper-20s.  Kittery reported a low of 29 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.

Frost/Freeze in ANDROSCOGGIN, MAINE
From 18-MAY-23 02:00:00 to 18-MAY-23 07:00:00 (EST-5)
Property damage: 0.00K
Reported by: State Official

A hard freeze impacted the region shortly after midnight on May 18th with widespread sub-freezing temperatures.  Temperatures ranged from freezing to the mid-20s.  Lewiston airport reported a low of 26 degrees.  The temperatures were some of the coldest this late in spring in over the past 30 years based on official records.  The hard freeze impacted blooming fruit trees and berries the most.  The hardest hit orchards were those at lower elevations in valleys with less impacts at orchards located at slightly higher elevations on hills.  There were reports of flower mortality rate as high as 90% in some areas.  In addition, leaf kill was prevalent with some oak species due to these tree species being more vulnerable to freezing.