Calendar Heatmap

Humidity Levels Calendar

Daily humidity percentage showing seasonal moisture patterns.

Output
Humidity Levels Calendar
Python
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import LinearSegmentedColormap
import matplotlib.patches as mpatches

np.random.seed(201)

days = 365
# Simulate humidity pattern - higher in summer, lower in winter
base_humidity = 55 + 20 * np.sin(2 * np.pi * (np.arange(days) - 80) / 365)
humidity = base_humidity + np.random.normal(0, 10, days)
humidity = np.clip(humidity, 20, 100)

humidity_levels = np.digitize(humidity, bins=[0, 30, 45, 60, 75, 90]) - 1

weeks = 53
data = np.zeros((7, weeks))
for i, val in enumerate(humidity_levels):
    week = i // 7
    day = i % 7
    if week < weeks:
        data[day, week] = val

# Temperature palette: cold to hot
colors = ['#1e3a8a', '#3b82f6', '#22d3ee', '#fbbf24', '#f97316', '#dc2626']
cmap = LinearSegmentedColormap.from_list('humidity', colors, N=256)

fig, ax = plt.subplots(figsize=(16, 4), facecolor='#0a0a0f')
ax.set_facecolor('#0a0a0f')

im = ax.imshow(data, cmap=cmap, aspect='auto', vmin=0, vmax=5)

ax.set_yticks(range(7))
ax.set_yticklabels(['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'], fontsize=9, color='#e2e8f0')
ax.set_xticks(range(0, 52, 4))
ax.set_xticklabels(['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec', ''], 
                   fontsize=9, color='#e2e8f0')

ax.set_title('Daily Humidity - Moisture Patterns', fontsize=16, color='white', fontweight='bold', pad=15)

for i in range(8):
    ax.axhline(y=i-0.5, color='#1e293b', linewidth=0.5)
for i in range(weeks+1):
    ax.axvline(x=i-0.5, color='#1e293b', linewidth=0.5)

ax.tick_params(colors='#e2e8f0', length=0)
for spine in ax.spines.values():
    spine.set_visible(False)

legend_elements = [mpatches.Patch(facecolor=c, label=l, edgecolor='#334155') 
                   for c, l in zip(colors, ['<30%', '30-45%', '45-60%', '60-75%', '75-90%', '>90%'])]
ax.legend(handles=legend_elements, loc='upper left', bbox_to_anchor=(0, -0.15), ncol=6, 
          fontsize=8, facecolor='#1e293b', edgecolor='#334155', labelcolor='white')

avg = np.mean(humidity)
ax.annotate(f'Average Humidity: {avg:.0f}%', xy=(0.98, 1.1), xycoords='axes fraction',
            fontsize=11, color='#22d3ee', ha='right', fontweight='bold')

plt.tight_layout()
plt.subplots_adjust(bottom=0.25)
plt.show()
Library

Matplotlib

Category

Time Series

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