Post on 18-Jan-2018
description
Asheville, NC
Ben Edwards, Andrea Hale, Dan Hoer, Kevin Lee,
Brock Phillips, Reese Yau
Average Temperature
Annual Mean Temperature
Seasonal Mean Temperature
Seasonal Mean Temperature
Spring Summer
Seasonal Mean Temperature
Fall Winter
Downtown Asheville, NC
1978 2008
Photo courtesy of Margaret Shook Photography Photo courtesy of Shullphoto
Population of Buncombe County, 1900-1990
US Census Bureau (http://www.census.gov/population/www/censusdata/cencounts/files/nc190090.txt)
Minimum Temperature
First Frost of the Year y = 0.0377x + 40036R2 = 0.0106
24-Sep
4-Oct
14-Oct
24-Oct
3-Nov
13-Nov
23-Nov
3-Dec
13-Dec
1900 1920 1940 1960 1980 2000
Year
Date
of F
irst F
rost
Last Frost of the Year y = -0.0274x + 39968R2 = 0.0058
8-Mar
18-Mar
28-Mar
7-Apr
17-Apr
27-Apr
7-May
17-May
1902 1922 1942 1962 1982 2002
Year
Dat
e
Month Trend Variability Slope R2 value
January Decrease High -0.0279 0.0106
February Increase High 0.0305 0.0169
March Stable High 0.0033 0.0004
April Increasing Low 0.0176 0.0212
May Stable/increase Low 0.0127 0.0104
June Stable/increase Low 0.011 0.0065
July Increase Low 0.0392 0.1153
August Increase Low 0.0321 0.0632
September Stable Low 0.0053 0.0011
October Increase Low 0.0255 0.0359
November Increase Extremely high 0.0359 0.053
December Decrease Extremely high -0.0138 0.004
Table 1: Summary of monthly minimum temperature analysis from period of record (1902-2008)
January-AprilJanuary
-20
-15
-10
-5
0
5
10
15
20
25
30
1900 1920 1940 1960 1980 2000
Year
Tem
pera
ture
s (F
)
February
-10
-5
0
5
10
15
20
25
30
1908 1928 1948 1968 1988 2008
Year
Min
imum
Tem
pera
ture
(F)
March
0
5
10
15
20
25
30
35
1902 1922 1942 1962 1982 2002
Year
Min
imum
tem
pera
ture
(F)
April
10
15
20
25
30
35
40
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
May-AugustMay
0
10
20
30
40
50
60
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
(F)
June
30
35
40
45
50
55
60
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
s (F
)
July
40
45
50
55
60
65
70
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
(F)
August
40
45
50
55
60
65
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
(F)
September-DecemberSeptember
30
35
40
45
50
55
60
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
October
15
20
25
30
35
40
45
50
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
(F)
November
0
5
10
15
20
25
30
35
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
(F)
December
-10
-5
0
5
10
15
20
25
30
1902 1922 1942 1962 1982 2002
Year
Min
imum
Tem
pera
ture
(F)
Maximum temperature
Years Range Number of yrs above average annual max temperature over 100 yrs (66.5 °F)
1908-1918 (10Yrs) 1
1908-1928 (20Yrs) 4
---------------------------------------- --------------------------------------------------
1998-2008 (10yrs) 9
1988-2008 (20 yrs) 14
Month Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
Difference in Temperature(°F)
-2.2 +1.2 +2.0 +2.1 +1.8 +1.5 +2.8 +3.0 0.0 0.0 +2.2 +1.8
Table 2: The difference in temperature over a 100-year period
Extreme temperatures
Spatial Variation