temp analysis

[snippsat]

The file is mess up(Unicode) from whatever source you get it from or saving done be you.
Try to work and save all with utf-8 as encoding.
Can fix data.

with open ('Data.txt', encoding='utf-8') as f,open('new_data.txt', 'w') as f_out:
    fixed_data = f.read().replace('�', '')
    f_out.write(fixed_data) 

Now is new data okay.

with open('new_data.txt') as f:
    for line in f:
        print(line.strip())

Output:
Time,Temperature,Humidity,Wind,Wind Speed,Wind Gust,Pressure,Precip.,Precip Accum,Condition
00:00:00,14 C,87%,WSW,6mph,0mph,29.1in,0.0in,0.0in,Mostly Cloudy
00:00:30,11 C,81%,WSW,6mph,0mph,29.1in,0.0in,0.0in,Mostly Cloudy
00:01:00,23 C,93%,W,7mph,0mph,29.1in,0.0in,0.0in,Mostly Cloudy
00:01:30,25 C,93%,WSW,7mph,0mph,29.0in,0.0in,0.0in,Mostly Cloudy
00:02:00,18 C,93%,WSW,9mph,0mph,29.0in,0.0in,0.0in,Light Rain Shower
00:02:30,10 C,93%,W,9mph,0mph,29.0in,0.0in,0.0in,Light Rain Shower
00:03:00,17 C,93%,W,9mph,0mph,29.0in,0.0in,0.0in,Mostly Cloudy
00:03:30,17 C,93%,W,9mph,0mph,29.0in,0.0in,0.0in,Light Rain Shower
00:04:00,23 C,100%,W,8mph,0mph,29.0in,0.0in,0.0in,Mostly Cloudy
00:04:30,26 C,100%,W,10mph,0mph,29.1in,0.0in,0.0in,Mostly Cloudy
00:05:00,20 C,100%,WNW,13mph,0mph,29.1in,0.0in,0.0in,Light Rain
00:05:30,21 C,93%,W,10mph,0mph,29.1in,0.0in,0.0in,Light Rain
00:06:00,25 C,93%,W,9mph,0mph,29.1in,0.0in,0.0in,Light Rain
00:06:30,25 C,100%,W,13mph,0mph,29.1in,0.0in,0.0in,Light Rain
00:07:00,27 C,93%,W,14mph,0mph,29.1in,0.0in,0.0in,Mostly Cloudy
00:07:30,27 C,93%,W,13mph,0mph,29.1in,0.0in,0.0in,Fair
00:08:00,14 C,93%,W,15mph,0mph,29.1in,0.0in,0.0in,Partly Cloudy
00:08:30,13 C,93%,W,12mph,0mph,29.1in,0.0in,0.0in,Fair
00:09:00,14 C,93%,W,14mph,0mph,29.2in,0.0in,0.0in,Fair
00:09:30,28 C,93%,W,16mph,0mph,29.2in,0.0in,0.0in,Fair
00:10:00,10 C,87%,W,17mph,0mph,29.2in,0.0in,0.0in,Fair
00:10:30,18 C,81%,W,20mph,0mph,29.2in,0.0in,0.0in,Fair
00:11:00,27 C,81%,W,21mph,0mph,29.2in,0.0in,0.0in,Fair / Windy
00:11:30,15 C,76%,W,22mph,0mph,29.2in,0.0in,0.0in,Fair / Windy
00:12:00,28 C,76%,W,23mph,0mph,29.3in,0.0in,0.0in,Partly Cloudy / Windy
00:12:30,17 C,70%,W,18mph,0mph,29.3in,0.0in,0.0in,Fair
00:13:00,23 C,70%,W,21mph,0mph,29.3in,0.0in,0.0in,Partly Cloudy / Windy
00:13:30,23 C,66%,W,21mph,0mph,29.3in,0.0in,0.0in,Mostly Cloudy / Windy
00:14:00,18 C,61%,W,23mph,0mph,29.3in,0.0in,0.0in,Mostly Cloudy / Windy
00:14:30,14 C,66%,W,22mph,33mph,29.3in,0.0in,0.0in,Mostly Cloudy / Windy
00:15:00,28 C,66%,WSW,18mph,0mph,29.3in,0.0in,0.0in,Mostly Cloudy
00:15:30,18 C,66%,WSW,16mph,30mph,29.3in,0.0in,0.0in,Showers in the Vicinity
00:16:00,29 C,61%,W,18mph,32mph,29.3in,0.0in,0.0in,Mostly Cloudy
00:16:30,21 C,70%,WSW,17mph,29mph,29.3in,0.0in,0.0in,Light Rain
00:17:00,12 C,70%,WSW,16mph,30mph,29.3in,0.0in,0.0in,Light Rain
00:17:30,22 C,76%,WSW,17mph,0mph,29.3in,0.0in,0.0in,Light Rain
00:18:00,22 C,87%,WSW,18mph,38mph,29.3in,0.0in,0.0in,Light Rain
00:18:30,12 C,93%,WSW,20mph,35mph,29.3in,0.0in,0.0in,Light Rain
00:19:00,24 C,87%,W,25mph,0mph,29.3in,0.0in,0.0in,Light Rain / Windy
00:19:30,28 C,93%,W,31mph,43mph,29.3in,0.0in,0.0in,Light Rain / Windy

So look at what i mention before,eg if print Temperature it will be in line[1].

with open('new_data.txt') as f:
    for line in f:
        #print(line.strip())
        line = line.split(',')
        print(line[1])

Output:
Temperature
14 C
11 C
23 C
25 C
18 C
10 C
17 C
17 C
23 C
26 C
20 C
21 C
25 C
25 C
27 C
27 C
14 C
13 C
14 C
28 C
10 C
18 C
27 C
15 C
28 C
17 C
23 C
23 C
18 C
14 C
28 C
18 C
29 C
21 C
12 C
22 C
22 C
12 C
24 C
28 C