Yorkshire & Humber climate change adaptation

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yorkshirefutures
 

Royal Haskoning

 
UK Climate Impacts Programme
 
 
  Environment Agency
 
Yorkshire Forward
 
Yorkshire and Humber Assembly
 
 
 

 

earwig results - seasonal average days of snowfall

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Seasonal Average Days of Snowfall
The Yorkshire Dales and the North Yorkshire Moors have the highest averages for snowfall during the winter with 14.5 days and 10 days respectively, as well as the lowest relative change of approximately 50% combined. These locations also have the highest averages for snowfall during the spring with 3.5 days and 1.6 days respectively. Snowfall during the summer period is negligible on the Yorkshire Dales, with 0.002 days having this occurrence. There are no areas that exhibit snowfall elsewhere across the North Yorkshire and Humber region.

Spring Average Days of Snowfall per year (Tmean ≤0°C)
The average number of days in the months of March, April and May when the daily mean air temperature is less than or equal to 0 °C.

Location

Baseline (days)

2050s (days)

Absolute Change (days)

Relative Change (%)

Mean

Standard Deviation

Mean

Standard Deviation

 

 

1

0.3

0.7

0.0

0.2

-0.3

-86.4

2

3.5

2.9

1.0

1.5

-2.5

-70.4

3

1.6

1.9

0.4

0.8

-1.2

-77.0

4

0.3

0.7

0.1

0.3

-0.3

-84.6

5

0.2

0.5

0.0

0.2

-0.2

-86.4

6

0.3

0.7

0.1

0.3

-0.3

-82.4

7

0.2

0.5

0.0

0.1

-0.1

-89.4

8

0.4

0.8

0.1

0.3

-0.4

-81.8

 

Summer Average Days of Snowfall per year (Tmean ≤0°C)
The average number of days in the months of June, July and August when the daily mean air temperature is less than or equal to 0 °C.

Location

Baseline (days)

2050s (days)

Absolute Change (days)

Relative Change (%)

Mean

Standard Deviation

Mean

Standard Deviation

 

 

1

0

0

0

0

0.0

0

2

0.002

0.048

0

0.018

0.0

0

3

0

0

0

0

0.0

0

4

0

0

0

0

0.0

0

5

0

0

0

0

0.0

0

6

0

0

0

0

0.0

0

7

0

0

0

0

0.0

0

8

0

0

0

0

0.0

0

 

Autumn Average Days of Snowfall per year (Tmean ≤0°C)
The average number of days in the months of September, October and November when the daily mean air temperature is less than or equal to 0 °C.

Location

Baseline (days)

2050s (days)

Absolute Change (days)

Relative Change (%)

Mean

Standard Deviation

Mean

Standard Deviation

 

 

1

0.3

0.7

0.1

0.4

-0.2

-72.6

2

1.6

1.9

0.5

1.0

-1.1

-69.4

3

0.9

1.4

0.3

0.7

-0.7

-72.4

4

0.3

0.8

0.1

0.3

-0.3

-80.2

5

0.2

0.6

0.0

0.2

-0.2

-82.4

6

0.4

0.8

0.1

0.3

-0.3

-78.5

7

0.2

0.6

0.0

0.2

-0.2

-82.9

8

0.4

0.8

0.1

0.4

-0.3

-76.6

 

Winter Average Days of Snowfall per year (Tmean ≤0°C)
The average number of days in the months of December, January and February when the daily mean air temperature is less than or equal to 0 °C.

Location

Baseline (days)

2050s (days)

Absolute Change (days)

Relative Change (%)

Mean

Standard Deviation

Mean

Standard Deviation

 

 

1

3.7

3.0

1.4

1.7

-2.3

-61.6

2

14.5

6.5

7.4

4.5

-7.0

-48.5

3

10.0

5.3

4.7

3.5

-5.2

-52.6

4

4.2

3.3

1.6

1.8

-2.7

-63.0

5

2.9

2.5

1.0

1.4

-1.8

-63.3

6

3.8

3.0

1.5

1.7

-2.2

-59.5

7

2.5

2.4

0.9

1.3

-1.6

-65.0

8

4.4

3.3

1.8

1.9

-2.6

-58.8