death_valley_highs_lows.py

from pathlib import Path
from datetime import datetime
import csv
import matplotlib.pyplot as plt

path = Path('weather_data/death_valley_2021_simple.csv')
lines = path.read_text().splitlines()

reader = csv.reader(lines)
header_row = next(reader)

# for index,column_header in enumerate(header_row):
#     print(index, column_header)

#提取最高温度,日期，和最低温度
dates, highs, lows=[], [], []
for row in reader:
    current_date = datetime.strptime(row[2], '%Y-%m-%d')
    try:
        high = int(row[3])
        low = int(row[4])
    except ValueError:
        print(f"Missing data for {current_date}")
    else:
        dates.append(current_date)
        highs.append(high)
        lows.append(low)

print(highs)
print(dates)

#根据最高温度绘图
plt.style.use('seaborn-v0_8')
fig, ax = plt.subplots()
ax.plot(dates, highs, c='red', alpha=0.5)
ax.plot(dates, lows, c='blue', alpha=0.5)
ax.fill_between(dates, highs, lows, facecolor='blue', alpha=0.1)

#设置绘图的格式
ax.set_title('Daily High and Low Temperatures', fontsize=24)
ax.set_xlabel('Date', fontsize=16)
fig.autofmt_xdate()
ax.set_ylabel('Temperature (F)', fontsize=16)
ax.tick_params(labelsize=16)

plt.show()